Scene generation and projection

Author

2023—Constanze Seibert & Frederic Lemmel

Learning goals

In this notebook you will learn how to use two new models

• load_star_map to generate a scene

Generates a scene from scopesim Source object loading objects from the GAIA catalog for given coordinates and FOV.

and

• simple_aperture to project this scene onto your detector.

Converts scene to photon with given aperture. First an xarray Dataset will be extracted from the Scene for a selected wavelength band, where the flux of the objects will be integrated along the wavelength band. This integrated flux in photon/(s cm2) is converted to photon/(s pixel). Finally, the objects are projected onto detector, while converting the object coordinates from arcsec to detector coordinates (pixel).

Both models are are implemented in Pyxel since version 1.11.

Keywords

scene generator, star map, flux conversion

Summary

We use Pyxel in exposure mode and generate a scene from the Gaia catalog with a virtual telescope pointing towards the Pleiades with a FOV diameter of \(0.5^{\circ}\). We visualise some selected spectra and the scene in arcsec. Then this scene is projected onto the detector using a simple aperture and a PSF model.

Loading packages

import matplotlib.colors as colors
import matplotlib.pyplot as plt
import pyxel
import xarray as xr

Load configuration file

cfg = pyxel.load("tutorial-scene.yaml")

detector = cfg.detector

Loading result

result = pyxel.run_mode(mode=cfg.exposure, detector=detector, pipeline=cfg.pipeline)

result

INFO:astroquery:Query finished.

INFO: Query finished. [astroquery.utils.tap.core]

<xarray.DatasetView> Size: 9MB
Dimensions:  (y: 500, x: 500, time: 1)
Coordinates:
  * y        (y) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
  * x        (x) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
  * time     (time) float64 8B 6e+03
Data variables:
    photon   (time, y, x) float64 2MB 406.7 319.5 294.7 ... 1.585e+03 2.439e+03
    charge   (time, y, x) float64 2MB 367.0 291.0 264.0 ... 1.409e+03 2.166e+03
    pixel    (time, y, x) float64 2MB 659.7 525.4 473.7 ... 2.544e+03 3.872e+03
    signal   (time, y, x) float64 2MB 0.002762 0.002309 ... 0.01029 0.01538
    image    (time, y, x) uint16 500kB 18 15 12 11 11 13 ... 62 63 72 70 67 100
Attributes:
    pyxel version:  2.9
    running mode:   Exposure

xarray.DataTree

• Groups: (3)
  <xarray.DatasetView> Size: 8kB
  Dimensions:  (y: 500, x: 500, time: 1)
  Coordinates:
    * y        (y) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * x        (x) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * time     (time) float64 8B 6e+03
  Data variables:
      *empty*

  output

  • Groups: (1)
    <xarray.DatasetView> Size: 8kB
    Dimensions:    (y: 500, x: 500, time: 1, extension: 1)
    Coordinates:
      * y          (y) int64 4kB 0 1 2 3 4 5 6 7 ... 492 493 494 495 496 497 498 499
      * x          (x) int64 4kB 0 1 2 3 4 5 6 7 ... 492 493 494 495 496 497 498 499
      * time       (time) float64 8B 6e+03
      * extension  (extension) <U4 16B 'fits'
    Data variables:
        filename   (extension) StringDType() 16B '/builds/esa/pyxel-data/examples...

    image

    • Groups: (0)
    • Dimensions:
      • y: 500
      • x: 500
      • time: 1
      • extension: 1
    • Coordinates: (1)
      • extension
        (extension)
        <U4
        'fits'

        array(['fits'], dtype='<U4')

    • Data variables: (1)
      • filename
        (extension)
        StringDType()
        '/builds/esa/pyxel-data/examples...

        array(['/builds/esa/pyxel-data/examples/models/scene_generation/output/run_20250417_140436/detector_image.fits'],
              dtype=StringDType())

    • Attributes: (0)

  • Dimensions:
    • y: 500
    • x: 500
    • time: 1
  • Coordinates: (0)
  • Data variables: (0)
  • Attributes: (0)

  <xarray.DatasetView> Size: 8kB
  Dimensions:  (y: 500, x: 500, time: 1)
  Coordinates:
    * y        (y) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * x        (x) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * time     (time) float64 8B 6e+03
  Data variables:
      *empty*

  scene

  • Groups: (1)
    <xarray.DatasetView> Size: 8kB
    Dimensions:  (y: 500, x: 500, time: 1)
    Coordinates:
      * y        (y) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
      * x        (x) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
      * time     (time) float64 8B 6e+03
    Data variables:
        *empty*

    list

    • Groups: (1)
      <xarray.DatasetView> Size: 963kB
      Dimensions:     (y: 500, x: 500, time: 1, ref: 345, wavelength: 343)
      Coordinates:
        * x           (x) int64 4kB 0 1 2 3 4 5 6 7 ... 493 494 495 496 497 498 499
        * y           (y) int64 4kB 0 1 2 3 4 5 6 7 ... 493 494 495 496 497 498 499
        * time        (time) float64 8B 6e+03
        * ref         (ref) int64 3kB 0 1 2 3 4 5 6 7 ... 338 339 340 341 342 343 344
        * wavelength  (wavelength) float64 3kB 336.0 338.0 ... 1.018e+03 1.02e+03
      Data variables:
          weight      (ref) float64 3kB 15.21 13.22 13.23 12.42 ... 13.69 13.86 12.19
          flux        (ref, wavelength) float64 947kB 0.003126 0.003373 ... 0.1005
      Attributes:
          right_ascension:  56.75 deg
          declination:      24.1167 deg
          fov_radius:       0.5 deg

      0

      • Groups: (0)
      • Dimensions:
        • y: 500
        • x: 500
        • time: 1
        • ref: 345
        • wavelength: 343
      • Coordinates: (2)
        • ref
          (ref)
          int64
          0 1 2 3 4 5 ... 340 341 342 343 344

          array([  0,   1,   2, ..., 342, 343, 344], shape=(345,))

        • wavelength
          (wavelength)
          float64
          336.0 338.0 ... 1.018e+03 1.02e+03

          units :

          nm

          array([ 336.,  338.,  340., ..., 1016., 1018., 1020.], shape=(343,))

      • Data variables: (2)
        • weight
          (ref)
          float64
          15.21 13.22 13.23 ... 13.86 12.19

          units :

          mag

          name :

          Mean magnitude in the integrated BP band (from 330 nm to 680 nm)

          array([15.20901203, 13.2177496 , 13.23250008, 12.416749  , 14.75032425,
                  7.81239843, 13.3903923 , 16.02643585, 15.330369  , 15.3719883 ,
                 13.61520863, 14.16744804, 12.51144695, 12.77129459,  7.1205883 ,
                 15.01417542, 14.50528431, 14.24950409, 15.44339085, 15.38312817,
                  9.57468891, 14.93962955, 11.84294415, 12.88471603, 15.38182735,
                 15.28768635, 14.11316204, 14.10231781, 13.80060577, 14.39716244,
                 14.09674454, 14.74662971, 15.20835876, 13.86490822, 15.33004189,
                 13.52662659, 13.18324471, 14.25382423, 15.31671906, 12.6021471 ,
                 13.99712276, 15.34826279,  7.00258923, 13.84567547, 11.07715416,
                 16.20565987, 14.44898987, 15.30435276, 11.44377422, 14.74273109,
                 14.3312397 , 14.2796917 , 13.8591013 , 10.03634167, 14.85232449,
                 15.0987072 , 15.20411777, 12.63183498, 13.58158588, 14.89955425,
                 14.35194588, 12.77211189, 14.2283287 , 15.10664463, 14.0704565 ,
                 14.73065948, 13.2811327 , 10.41359329, 13.27140713, 13.31294441,
                 13.99415779, 15.6078949 , 14.05162144, 12.94872761, 15.70315361,
                 15.04654598, 16.20617104, 15.80631065, 12.40056038, 15.38866329,
                 11.17952728, 14.68725586, 14.23805714, 11.06431866, 14.35934162,
                  7.29156303, 13.23767281, 13.72062016, 13.95710182, 10.97555161,
                 14.43372631, 13.33223915, 14.34605503, 14.53803253, 14.59745407,
                 11.89101219, 14.64295006, 15.05331516, 12.77182102, 13.70209217,
          ...
                 14.45744419, 15.45519066,  9.2005949 , 15.31685543, 15.42233658,
                 13.41524506, 14.52486324, 11.62935734, 15.35637188, 16.25976562,
                 13.80370331, 11.15873909, 13.55993652, 13.33452892, 11.11133671,
                 14.74496555, 16.11065102, 13.1533308 , 14.49634266, 12.87847137,
                 12.32761669, 14.84459686, 13.05871296, 14.01003075,  8.38823414,
                  6.99309111, 13.17592049, 14.7345047 , 14.79999161,  9.61805153,
                 12.10192585, 15.01896763, 14.71880531, 13.54509258, 15.17868137,
                 16.49301147, 15.51228905, 14.95617485, 13.67426109, 10.67801952,
                 12.52820206, 13.45124626, 12.97446823, 11.62330246, 12.91152477,
                 15.4462738 , 13.80534554, 10.9291029 , 13.68243694, 14.75922012,
                 11.56293392, 15.00431538, 14.46530724, 12.35663414, 14.6271944 ,
                 15.39118576, 14.24361706, 11.96102238, 11.81186581, 14.59864616,
                 12.60894489, 14.63958168, 13.20039463, 15.2858696 , 15.49269962,
                 10.59644604, 14.61058044, 13.43067265, 14.95638084, 15.1562891 ,
                 13.46807671, 13.84461784, 13.08119869, 14.03538132, 14.97915173,
                 14.27264786, 15.29339027, 11.26356792, 14.45137024, 15.33295631,
                 15.42258739, 14.41109467, 13.98301983, 15.33768654, 14.71689129,
                 13.5712471 , 10.62453938, 12.96099758, 15.06739426, 14.7061882 ,
                 15.23714638, 14.61572361, 10.78201389, 14.20628452,  7.7300992 ,
                 13.09300137, 15.41769695, 13.69031715, 13.85611343, 12.18818665])

        • flux
          (ref, wavelength)
          float64
          0.003126 0.003373 ... 0.1005

          units :

          ph / (nm s cm2)

          array([[0.00312572, 0.00337286, 0.00325256, ..., 0.00852623, 0.00816103,
                  0.0081714 ],
                 [0.02194741, 0.024397  , 0.02326499, ..., 0.04985743, 0.04757854,
                  0.04669773],
                 [0.01629205, 0.01498172, 0.01323134, ..., 0.08103125, 0.08205404,
                  0.08627887],
                 ...,
                 [0.00780127, 0.00613003, 0.00518915, ..., 0.07368469, 0.07394849,
                  0.07688101],
                 [0.01325106, 0.01142473, 0.0098273 , ..., 0.03646348, 0.03726731,
                  0.03970125],
                 [0.05221722, 0.05668866, 0.05660295, ..., 0.09598034, 0.09463997,
                  0.10045612]], shape=(345, 343))

      • Attributes: (3)

        right_ascension :

        56.75 deg

        declination :

        24.1167 deg

        fov_radius :

        0.5 deg

    • Dimensions:
      • y: 500
      • x: 500
      • time: 1
    • Coordinates: (0)
    • Data variables: (0)
    • Attributes: (0)

  • Dimensions:
    • y: 500
    • x: 500
    • time: 1
  • Coordinates: (0)
  • Data variables: (0)
  • Attributes: (0)

  <xarray.DatasetView> Size: 8kB
  Dimensions:  (y: 500, x: 500, time: 1)
  Coordinates:
    * y        (y) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * x        (x) int64 4kB 0 1 2 3 4 5 6 7 8 ... 492 493 494 495 496 497 498 499
    * time     (time) float64 8B 6e+03
  Data variables:
      *empty*

  data

  • Groups: (0)
  • Dimensions:
    • y: 500
    • x: 500
    • time: 1
  • Coordinates: (0)
  • Data variables: (0)
  • Attributes: (0)

• Dimensions:
  • y: 500
  • x: 500
  • time: 1
• Coordinates: (3)
  • y
    (y)
    int64
    0 1 2 3 4 5 ... 495 496 497 498 499

    units :

    pix

    long_name :

    Row

    array([  0,   1,   2, ..., 497, 498, 499], shape=(500,))

  • x
    (x)
    int64
    0 1 2 3 4 5 ... 495 496 497 498 499

    units :

    pix

    long_name :

    Column

    array([  0,   1,   2, ..., 497, 498, 499], shape=(500,))

  • time
    (time)
    float64
    6e+03

    units :

    s

    long_name :

    Readout time

    array([6000.])

• Inherited coordinates: (0)
• Data variables: (5)
  • photon
    (time, y, x)
    float64
    406.7 319.5 ... 1.585e+03 2.439e+03

    units :

    Ph

    long_name :

    Photon

    array([[[ 406.71258772,  319.46049311,  294.65683712, ...,
              312.00587143,  374.15422898, 1604.74177449],
            [ 316.293198  ,  215.1418492 ,  183.33771061, ...,
              205.51604899,  278.82289649, 1540.85049836],
            [ 287.95207154,  182.40485138,  147.99788818, ...,
              172.12036394,  249.2217394 , 1518.19439064],
            ...,
            [ 308.00860031,  205.2236801 ,  172.48686797, ...,
              296.13402052,  285.32829846, 1547.20809158],
            [ 373.14889928,  280.32563237,  253.58879938, ...,
              372.84690556,  352.04043663, 1593.02121144],
            [1595.37444417, 1535.09892136, 1515.30680566, ...,
             1621.39455029, 1585.33230789, 2438.78301129]]],
          shape=(1, 500, 500))

  • charge
    (time, y, x)
    float64
    367.0 291.0 ... 1.409e+03 2.166e+03

    units :

    e⁻

    long_name :

    Charge

    array([[[ 367.,  291.,  264., ...,  278.,  340., 1441.],
            [ 278.,  190.,  168., ...,  185.,  249., 1374.],
            [ 263.,  166.,  130., ...,  156.,  231., 1364.],
            ...,
            [ 283.,  187.,  153., ...,  265.,  244., 1407.],
            [ 340.,  253.,  221., ...,  337.,  309., 1443.],
            [1443., 1386., 1361., ..., 1469., 1409., 2166.]]],
          shape=(1, 500, 500))

  • pixel
    (time, y, x)
    float64
    659.7 525.4 ... 2.544e+03 3.872e+03

    units :

    e⁻

    long_name :

    Pixel

    array([[[ 659.74914953,  525.38526275,  473.65000299, ...,
              502.20180902,  617.79679076, 2614.62445984],
            [ 498.00978332,  341.28698888,  299.10007685, ...,
              330.58428772,  449.95457915, 2494.79316787],
            [ 470.48487551,  300.56276408,  232.80952571, ...,
              283.72594356,  416.45944694, 2480.58824574],
            ...,
            [ 515.82841938,  333.36319985,  275.92958418, ...,
              474.9468964 ,  436.66535806, 2522.8859523 ],
            [ 614.65264377,  455.54942394,  400.13972136, ...,
              610.04992317,  560.58892547, 2589.58081597],
            [2613.98900878, 2472.73677982, 2461.48080121, ...,
             2636.60397266, 2544.21386242, 3871.60187954]]],
          shape=(1, 500, 500))

  • signal
    (time, y, x)
    float64
    0.002762 0.002309 ... 0.01538

    units :

    V

    long_name :

    Signal

    array([[[0.00276175, 0.00230904, 0.00184061, ..., 0.00214475,
             0.00278123, 0.0106481 ],
            [0.00185529, 0.00103229, 0.00086854, ..., 0.00158503,
             0.00200028, 0.00998273],
            [0.00194251, 0.00100301, 0.00115398, ..., 0.00102618,
             0.00191603, 0.00993346],
            ...,
            [0.00234728, 0.00108398, 0.00104565, ..., 0.00201014,
             0.00155741, 0.01012891],
            [0.0026282 , 0.00215325, 0.00212561, ..., 0.00244219,
             0.0026457 , 0.01052014],
            [0.01054032, 0.00987696, 0.0099816 , ..., 0.01075828,
             0.01028898, 0.01537633]]], shape=(1, 500, 500))

  • image
    (time, y, x)
    uint16
    18 15 12 11 11 ... 63 72 70 67 100

    units :

    adu

    long_name :

    Image

    array([[[ 18,  15,  12, ...,  14,  18,  69],
            [ 12,   6,   5, ...,  10,  13,  65],
            [ 12,   6,   7, ...,   6,  12,  65],
            ...,
            [ 15,   7,   6, ...,  13,  10,  66],
            [ 17,  14,  13, ...,  16,  17,  68],
            [ 69,  64,  65, ...,  70,  67, 100]]],
          shape=(1, 500, 500), dtype=uint16)

• Attributes: (2)

  pyxel version :

  2.9

  running mode :

  Exposure

Get Scene from DataTree

Info: Detector object contains only last exposure (time)

data_tree = detector.scene.data

data_tree["/list/0"]

<xarray.DatasetView> Size: 960kB
Dimensions:     (ref: 345, wavelength: 343)
Coordinates:
  * ref         (ref) int64 3kB 0 1 2 3 4 5 6 7 ... 338 339 340 341 342 343 344
  * wavelength  (wavelength) float64 3kB 336.0 338.0 ... 1.018e+03 1.02e+03
Data variables:
    x           (ref) float64 3kB 2.053e+05 2.055e+05 ... 2.039e+05 2.03e+05
    y           (ref) float64 3kB 8.528e+04 8.54e+04 ... 8.852e+04 8.82e+04
    weight      (ref) float64 3kB 15.21 13.22 13.23 12.42 ... 13.69 13.86 12.19
    flux        (ref, wavelength) float64 947kB 0.003126 0.003373 ... 0.1005
Attributes:
    right_ascension:  56.75 deg
    declination:      24.1167 deg
    fov_radius:       0.5 deg

xarray.DataTree

• Groups: (0)
• Dimensions:
  • ref: 345
  • wavelength: 343
• Coordinates: (2)
  • ref
    (ref)
    int64
    0 1 2 3 4 5 ... 340 341 342 343 344

    array([  0,   1,   2, ..., 342, 343, 344], shape=(345,))

  • wavelength
    (wavelength)
    float64
    336.0 338.0 ... 1.018e+03 1.02e+03

    units :

    nm

    array([ 336.,  338.,  340., ..., 1016., 1018., 1020.], shape=(343,))

• Inherited coordinates: (0)
• Data variables: (4)
  • x
    (ref)
    float64
    2.053e+05 2.055e+05 ... 2.03e+05

    units :

    arcsec

    array([205272.96320307, 205495.32693418, 205576.37703494, 204679.69775691,
           204628.18054704, 204702.80471198, 204788.43673544, 204802.20907061,
           204354.26656457, 204390.89825883, 204428.23205835, 204339.19193729,
           204402.03734004, 204503.33628355, 204556.5369013 , 204381.18090489,
           204295.46953244, 204214.12143314, 204441.932452  , 204276.15835324,
           204447.9446791 , 204386.56167808, 205139.80411238, 205124.48258168,
           204931.33389154, 205306.84197775, 205253.22378282, 205193.04374307,
           205140.52109831, 204982.40553178, 204918.06412437, 205018.59972374,
           204938.95825769, 205306.35943538, 205455.28283565, 205095.59522654,
           205110.93849561, 205102.90550217, 205246.01448534, 205310.97787019,
           204706.29560431, 204857.79851635, 204614.8663912 , 204582.79551974,
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           205210.31311152, 204816.65967628, 205057.93837457, 205067.09617539,
           205012.00192704, 205088.2353171 , 204931.04958573, 204974.10501835,
           203582.9899009 , 203091.42360418, 202943.94928903, 202799.94026972,
           202691.19261265, 202666.60466735, 202475.693542  , 203810.5441724 ,
           203998.89583579, 204154.05732244, 204245.83193812, 203965.54825258,
           203918.54153723, 204081.99541838, 204112.08658135, 204052.0148318 ,
           203960.04384498, 203441.7456072 , 203483.85385107, 203291.6360508 ,
           203197.42745768, 203498.07633196, 203901.34019547, 203765.61479097,
    ...
           205131.41903988, 205403.67593023, 205651.79789154, 205653.82917857,
           204337.7463124 , 204455.3859183 , 204451.15731782, 204946.53734987,
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           204294.47969539, 204571.28243089, 204611.70110645, 204321.26656059,
           204294.18676093, 204460.89795588, 204950.65921362, 205064.52456355,
           204853.1039181 , 205305.79434714, 205306.4788944 , 205459.7105874 ,
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           203683.35249378, 203762.67351098, 203844.66995523, 203512.99120107,
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           204295.88025249, 204188.00774311, 203961.87495122, 203418.13003418,
           203514.50650027, 203217.94032982, 203983.71625542, 203740.39258056,
           204422.07144088, 204561.01745336, 204602.16636712, 204209.73678784,
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           204121.06448113, 204138.4390774 , 204100.76163129, 203910.05167262,
           203039.79102153])

  • y
    (ref)
    float64
    8.528e+04 8.54e+04 ... 8.82e+04

    units :

    arcsec

    array([85280.54745628, 85401.64615691, 85533.45733346, 85071.95361196,
           85190.0038816 , 85241.25666871, 85243.98364865, 85292.25341913,
           85131.16063265, 85111.24062657, 85357.98397506, 85346.34162605,
           85373.82867916, 85370.70823479, 85415.87113667, 85395.62394824,
           85492.02555538, 85460.91728798, 85471.12669078, 85532.14093324,
           85617.194382  , 85626.63752689, 85305.51229701, 85282.46830051,
           85310.81636439, 85427.49027064, 85456.06994034, 85416.00486076,
           85476.74935493, 85400.2013779 , 85464.3091715 , 85423.98027267,
           85570.71853839, 85454.47388494, 85787.22553956, 85655.48458259,
           85765.67559276, 85744.31179296, 85875.90354407, 85914.78036921,
           85494.38469092, 85624.32324549, 85691.30796091, 85694.84181094,
           85747.99105719, 85792.65648535, 85976.74396558, 85938.94443497,
           85963.74290408, 85926.96126273, 86043.04220424, 86067.44870543,
           86067.23323341, 86187.68664664, 86160.55124064, 86214.81195851,
           85180.53669323, 85514.74531458, 85537.08840711, 85776.8084001 ,
           85846.27101861, 86020.68009628, 86214.57620629, 85296.16577882,
           85479.64470943, 85642.96043358, 85743.66835175, 85635.03438512,
           85684.73112184, 85774.66824064, 85770.80495623, 85777.2488775 ,
           85853.82242023, 85453.85563371, 85525.40982515, 85562.64464402,
           85662.56567661, 85819.71405252, 85850.24823511, 85958.5772216 ,
    ...
           87487.43887018, 87545.56474104, 87643.1686493 , 87949.03951986,
           86939.96763959, 87327.03254622, 87395.23304211, 87415.50599452,
           87652.47852484, 87716.02481002, 87324.73140933, 87405.4143668 ,
           87434.25903683, 87486.04289666, 87414.72018726, 87565.14364739,
           87525.8456802 , 87636.02015555, 87665.00814374, 87629.61300315,
           87592.65029963, 87806.03484887, 87821.96419393, 87743.63150638,
           87783.70747546, 87969.48699845, 87544.93655726, 87722.60460291,
           87780.84858721, 88031.99399299, 88106.51945291, 88215.19460616,
           87837.36492625, 87824.36870528, 87958.84120578, 88033.38548525,
           88079.37012319, 88215.12081422, 88172.85787888, 88231.83479933,
           88143.91880796, 88288.56943602, 88329.79324834, 88478.60125768,
           88455.62477372, 88224.39130839, 87544.94472024, 87600.09952735,
           87601.35987663, 87699.64135338, 87745.81816299, 87747.04042555,
           87833.88243708, 87838.30420115, 87961.46163807, 88150.61161521,
           88118.50756841, 88144.72977137, 88054.59804031, 87922.110943  ,
           88105.80955718, 88017.07436459, 88272.38730614, 88451.81916863,
           88293.90751367, 88233.95742285, 88311.593469  , 88333.22024131,
           88533.12162332, 88404.87387926, 88413.80403469, 88517.61820837,
           88413.89292414, 88559.37215987, 88572.70399247, 88520.40933261,
           88200.6989898 ])

  • weight
    (ref)
    float64
    15.21 13.22 13.23 ... 13.86 12.19

    units :

    mag

    name :

    Mean magnitude in the integrated BP band (from 330 nm to 680 nm)

    array([15.20901203, 13.2177496 , 13.23250008, 12.416749  , 14.75032425,
            7.81239843, 13.3903923 , 16.02643585, 15.330369  , 15.3719883 ,
           13.61520863, 14.16744804, 12.51144695, 12.77129459,  7.1205883 ,
           15.01417542, 14.50528431, 14.24950409, 15.44339085, 15.38312817,
            9.57468891, 14.93962955, 11.84294415, 12.88471603, 15.38182735,
           15.28768635, 14.11316204, 14.10231781, 13.80060577, 14.39716244,
           14.09674454, 14.74662971, 15.20835876, 13.86490822, 15.33004189,
           13.52662659, 13.18324471, 14.25382423, 15.31671906, 12.6021471 ,
           13.99712276, 15.34826279,  7.00258923, 13.84567547, 11.07715416,
           16.20565987, 14.44898987, 15.30435276, 11.44377422, 14.74273109,
           14.3312397 , 14.2796917 , 13.8591013 , 10.03634167, 14.85232449,
           15.0987072 , 15.20411777, 12.63183498, 13.58158588, 14.89955425,
           14.35194588, 12.77211189, 14.2283287 , 15.10664463, 14.0704565 ,
           14.73065948, 13.2811327 , 10.41359329, 13.27140713, 13.31294441,
           13.99415779, 15.6078949 , 14.05162144, 12.94872761, 15.70315361,
           15.04654598, 16.20617104, 15.80631065, 12.40056038, 15.38866329,
           11.17952728, 14.68725586, 14.23805714, 11.06431866, 14.35934162,
            7.29156303, 13.23767281, 13.72062016, 13.95710182, 10.97555161,
           14.43372631, 13.33223915, 14.34605503, 14.53803253, 14.59745407,
           11.89101219, 14.64295006, 15.05331516, 12.77182102, 13.70209217,
    ...
           14.45744419, 15.45519066,  9.2005949 , 15.31685543, 15.42233658,
           13.41524506, 14.52486324, 11.62935734, 15.35637188, 16.25976562,
           13.80370331, 11.15873909, 13.55993652, 13.33452892, 11.11133671,
           14.74496555, 16.11065102, 13.1533308 , 14.49634266, 12.87847137,
           12.32761669, 14.84459686, 13.05871296, 14.01003075,  8.38823414,
            6.99309111, 13.17592049, 14.7345047 , 14.79999161,  9.61805153,
           12.10192585, 15.01896763, 14.71880531, 13.54509258, 15.17868137,
           16.49301147, 15.51228905, 14.95617485, 13.67426109, 10.67801952,
           12.52820206, 13.45124626, 12.97446823, 11.62330246, 12.91152477,
           15.4462738 , 13.80534554, 10.9291029 , 13.68243694, 14.75922012,
           11.56293392, 15.00431538, 14.46530724, 12.35663414, 14.6271944 ,
           15.39118576, 14.24361706, 11.96102238, 11.81186581, 14.59864616,
           12.60894489, 14.63958168, 13.20039463, 15.2858696 , 15.49269962,
           10.59644604, 14.61058044, 13.43067265, 14.95638084, 15.1562891 ,
           13.46807671, 13.84461784, 13.08119869, 14.03538132, 14.97915173,
           14.27264786, 15.29339027, 11.26356792, 14.45137024, 15.33295631,
           15.42258739, 14.41109467, 13.98301983, 15.33768654, 14.71689129,
           13.5712471 , 10.62453938, 12.96099758, 15.06739426, 14.7061882 ,
           15.23714638, 14.61572361, 10.78201389, 14.20628452,  7.7300992 ,
           13.09300137, 15.41769695, 13.69031715, 13.85611343, 12.18818665])

  • flux
    (ref, wavelength)
    float64
    0.003126 0.003373 ... 0.1005

    units :

    ph / (nm s cm2)

    array([[0.00312572, 0.00337286, 0.00325256, ..., 0.00852623, 0.00816103,
            0.0081714 ],
           [0.02194741, 0.024397  , 0.02326499, ..., 0.04985743, 0.04757854,
            0.04669773],
           [0.01629205, 0.01498172, 0.01323134, ..., 0.08103125, 0.08205404,
            0.08627887],
           ...,
           [0.00780127, 0.00613003, 0.00518915, ..., 0.07368469, 0.07394849,
            0.07688101],
           [0.01325106, 0.01142473, 0.0098273 , ..., 0.03646348, 0.03726731,
            0.03970125],
           [0.05221722, 0.05668866, 0.05660295, ..., 0.09598034, 0.09463997,
            0.10045612]], shape=(345, 343))

• Attributes: (3)

  right_ascension :

  56.75 deg

  declination :

  24.1167 deg

  fov_radius :

  0.5 deg

result.scene
result["scene/list/0"]

<xarray.DatasetView> Size: 963kB
Dimensions:     (y: 500, x: 500, time: 1, ref: 345, wavelength: 343)
Coordinates:
  * x           (x) int64 4kB 0 1 2 3 4 5 6 7 ... 493 494 495 496 497 498 499
  * y           (y) int64 4kB 0 1 2 3 4 5 6 7 ... 493 494 495 496 497 498 499
  * time        (time) float64 8B 6e+03
  * ref         (ref) int64 3kB 0 1 2 3 4 5 6 7 ... 338 339 340 341 342 343 344
  * wavelength  (wavelength) float64 3kB 336.0 338.0 ... 1.018e+03 1.02e+03
Data variables:
    weight      (ref) float64 3kB 15.21 13.22 13.23 12.42 ... 13.69 13.86 12.19
    flux        (ref, wavelength) float64 947kB 0.003126 0.003373 ... 0.1005
Attributes:
    right_ascension:  56.75 deg
    declination:      24.1167 deg
    fov_radius:       0.5 deg

xarray.DataTree

• Groups: (0)
• Dimensions:
  • y: 500
  • x: 500
  • time: 1
  • ref: 345
  • wavelength: 343
• Coordinates: (2)
  • ref
    (ref)
    int64
    0 1 2 3 4 5 ... 340 341 342 343 344

    array([  0,   1,   2, ..., 342, 343, 344], shape=(345,))

  • wavelength
    (wavelength)
    float64
    336.0 338.0 ... 1.018e+03 1.02e+03

    units :

    nm

    array([ 336.,  338.,  340., ..., 1016., 1018., 1020.], shape=(343,))

• Inherited coordinates: (3)
  • y
    (y)
    int64
    0 1 2 3 4 5 ... 495 496 497 498 499

    units :

    pix

    long_name :

    Row

    array([  0,   1,   2, ..., 497, 498, 499], shape=(500,))

  • x
    (x)
    int64
    0 1 2 3 4 5 ... 495 496 497 498 499

    units :

    pix

    long_name :

    Column

    array([  0,   1,   2, ..., 497, 498, 499], shape=(500,))

  • time
    (time)
    float64
    6e+03

    units :

    s

    long_name :

    Readout time

    array([6000.])

• Data variables: (2)
  • weight
    (ref)
    float64
    15.21 13.22 13.23 ... 13.86 12.19

    units :

    mag

    name :

    Mean magnitude in the integrated BP band (from 330 nm to 680 nm)

    array([15.20901203, 13.2177496 , 13.23250008, 12.416749  , 14.75032425,
            7.81239843, 13.3903923 , 16.02643585, 15.330369  , 15.3719883 ,
           13.61520863, 14.16744804, 12.51144695, 12.77129459,  7.1205883 ,
           15.01417542, 14.50528431, 14.24950409, 15.44339085, 15.38312817,
            9.57468891, 14.93962955, 11.84294415, 12.88471603, 15.38182735,
           15.28768635, 14.11316204, 14.10231781, 13.80060577, 14.39716244,
           14.09674454, 14.74662971, 15.20835876, 13.86490822, 15.33004189,
           13.52662659, 13.18324471, 14.25382423, 15.31671906, 12.6021471 ,
           13.99712276, 15.34826279,  7.00258923, 13.84567547, 11.07715416,
           16.20565987, 14.44898987, 15.30435276, 11.44377422, 14.74273109,
           14.3312397 , 14.2796917 , 13.8591013 , 10.03634167, 14.85232449,
           15.0987072 , 15.20411777, 12.63183498, 13.58158588, 14.89955425,
           14.35194588, 12.77211189, 14.2283287 , 15.10664463, 14.0704565 ,
           14.73065948, 13.2811327 , 10.41359329, 13.27140713, 13.31294441,
           13.99415779, 15.6078949 , 14.05162144, 12.94872761, 15.70315361,
           15.04654598, 16.20617104, 15.80631065, 12.40056038, 15.38866329,
           11.17952728, 14.68725586, 14.23805714, 11.06431866, 14.35934162,
            7.29156303, 13.23767281, 13.72062016, 13.95710182, 10.97555161,
           14.43372631, 13.33223915, 14.34605503, 14.53803253, 14.59745407,
           11.89101219, 14.64295006, 15.05331516, 12.77182102, 13.70209217,
    ...
           14.45744419, 15.45519066,  9.2005949 , 15.31685543, 15.42233658,
           13.41524506, 14.52486324, 11.62935734, 15.35637188, 16.25976562,
           13.80370331, 11.15873909, 13.55993652, 13.33452892, 11.11133671,
           14.74496555, 16.11065102, 13.1533308 , 14.49634266, 12.87847137,
           12.32761669, 14.84459686, 13.05871296, 14.01003075,  8.38823414,
            6.99309111, 13.17592049, 14.7345047 , 14.79999161,  9.61805153,
           12.10192585, 15.01896763, 14.71880531, 13.54509258, 15.17868137,
           16.49301147, 15.51228905, 14.95617485, 13.67426109, 10.67801952,
           12.52820206, 13.45124626, 12.97446823, 11.62330246, 12.91152477,
           15.4462738 , 13.80534554, 10.9291029 , 13.68243694, 14.75922012,
           11.56293392, 15.00431538, 14.46530724, 12.35663414, 14.6271944 ,
           15.39118576, 14.24361706, 11.96102238, 11.81186581, 14.59864616,
           12.60894489, 14.63958168, 13.20039463, 15.2858696 , 15.49269962,
           10.59644604, 14.61058044, 13.43067265, 14.95638084, 15.1562891 ,
           13.46807671, 13.84461784, 13.08119869, 14.03538132, 14.97915173,
           14.27264786, 15.29339027, 11.26356792, 14.45137024, 15.33295631,
           15.42258739, 14.41109467, 13.98301983, 15.33768654, 14.71689129,
           13.5712471 , 10.62453938, 12.96099758, 15.06739426, 14.7061882 ,
           15.23714638, 14.61572361, 10.78201389, 14.20628452,  7.7300992 ,
           13.09300137, 15.41769695, 13.69031715, 13.85611343, 12.18818665])

  • flux
    (ref, wavelength)
    float64
    0.003126 0.003373 ... 0.1005

    units :

    ph / (nm s cm2)

    array([[0.00312572, 0.00337286, 0.00325256, ..., 0.00852623, 0.00816103,
            0.0081714 ],
           [0.02194741, 0.024397  , 0.02326499, ..., 0.04985743, 0.04757854,
            0.04669773],
           [0.01629205, 0.01498172, 0.01323134, ..., 0.08103125, 0.08205404,
            0.08627887],
           ...,
           [0.00780127, 0.00613003, 0.00518915, ..., 0.07368469, 0.07394849,
            0.07688101],
           [0.01325106, 0.01142473, 0.0098273 , ..., 0.03646348, 0.03726731,
            0.03970125],
           [0.05221722, 0.05668866, 0.05660295, ..., 0.09598034, 0.09463997,
            0.10045612]], shape=(345, 343))

• Attributes: (3)

  right_ascension :

  56.75 deg

  declination :

  24.1167 deg

  fov_radius :

  0.5 deg

Turn DataTree to Dataset

For now needed, because plotting not available in DataTree yet.

ds = data_tree["/list/0"].to_dataset()

ds

<xarray.Dataset> Size: 960kB
Dimensions:     (ref: 345, wavelength: 343)
Coordinates:
  * ref         (ref) int64 3kB 0 1 2 3 4 5 6 7 ... 338 339 340 341 342 343 344
  * wavelength  (wavelength) float64 3kB 336.0 338.0 ... 1.018e+03 1.02e+03
Data variables:
    x           (ref) float64 3kB 2.053e+05 2.055e+05 ... 2.039e+05 2.03e+05
    y           (ref) float64 3kB 8.528e+04 8.54e+04 ... 8.852e+04 8.82e+04
    weight      (ref) float64 3kB 15.21 13.22 13.23 12.42 ... 13.69 13.86 12.19
    flux        (ref, wavelength) float64 947kB 0.003126 0.003373 ... 0.1005
Attributes:
    right_ascension:  56.75 deg
    declination:      24.1167 deg
    fov_radius:       0.5 deg

xarray.Dataset

• Dimensions:
  • ref: 345
  • wavelength: 343
• Coordinates: (2)
  • ref
    (ref)
    int64
    0 1 2 3 4 5 ... 340 341 342 343 344

    array([  0,   1,   2, ..., 342, 343, 344], shape=(345,))

  • wavelength
    (wavelength)
    float64
    336.0 338.0 ... 1.018e+03 1.02e+03

    units :

    nm

    array([ 336.,  338.,  340., ..., 1016., 1018., 1020.], shape=(343,))

• Data variables: (4)
  • x
    (ref)
    float64
    2.053e+05 2.055e+05 ... 2.03e+05

    units :

    arcsec

    array([205272.96320307, 205495.32693418, 205576.37703494, 204679.69775691,
           204628.18054704, 204702.80471198, 204788.43673544, 204802.20907061,
           204354.26656457, 204390.89825883, 204428.23205835, 204339.19193729,
           204402.03734004, 204503.33628355, 204556.5369013 , 204381.18090489,
           204295.46953244, 204214.12143314, 204441.932452  , 204276.15835324,
           204447.9446791 , 204386.56167808, 205139.80411238, 205124.48258168,
           204931.33389154, 205306.84197775, 205253.22378282, 205193.04374307,
           205140.52109831, 204982.40553178, 204918.06412437, 205018.59972374,
           204938.95825769, 205306.35943538, 205455.28283565, 205095.59522654,
           205110.93849561, 205102.90550217, 205246.01448534, 205310.97787019,
           204706.29560431, 204857.79851635, 204614.8663912 , 204582.79551974,
           204541.76033321, 204505.27947361, 204717.23108469, 204975.28547425,
           205210.31311152, 204816.65967628, 205057.93837457, 205067.09617539,
           205012.00192704, 205088.2353171 , 204931.04958573, 204974.10501835,
           203582.9899009 , 203091.42360418, 202943.94928903, 202799.94026972,
           202691.19261265, 202666.60466735, 202475.693542  , 203810.5441724 ,
           203998.89583579, 204154.05732244, 204245.83193812, 203965.54825258,
           203918.54153723, 204081.99541838, 204112.08658135, 204052.0148318 ,
           203960.04384498, 203441.7456072 , 203483.85385107, 203291.6360508 ,
           203197.42745768, 203498.07633196, 203901.34019547, 203765.61479097,
    ...
           205131.41903988, 205403.67593023, 205651.79789154, 205653.82917857,
           204337.7463124 , 204455.3859183 , 204451.15731782, 204946.53734987,
           204716.34034714, 204691.32548628, 204052.27375031, 204042.32561284,
           204204.40960506, 204124.60800636, 203884.56639231, 203875.29831716,
           204062.67894933, 203959.95205202, 203997.71553541, 204085.05374306,
           204294.47969539, 204571.28243089, 204611.70110645, 204321.26656059,
           204294.18676093, 204460.89795588, 204950.65921362, 205064.52456355,
           204853.1039181 , 205305.79434714, 205306.4788944 , 205459.7105874 ,
           204773.30443307, 204669.35558597, 204736.31941762, 204579.05010796,
           204724.16189784, 204809.45374553, 204749.78308233, 204704.60823842,
           204967.28365964, 204855.44954904, 204832.29533852, 204860.08206294,
           205061.05185939, 205527.85579724, 203710.23805721, 203872.0644166 ,
           203683.35249378, 203762.67351098, 203844.66995523, 203512.99120107,
           203613.02193151, 203689.35185032, 203826.54345461, 204266.95180818,
           204295.88025249, 204188.00774311, 203961.87495122, 203418.13003418,
           203514.50650027, 203217.94032982, 203983.71625542, 203740.39258056,
           204422.07144088, 204561.01745336, 204602.16636712, 204209.73678784,
           204426.02603666, 204732.55803848, 204775.43057723, 204661.29109064,
           204121.06448113, 204138.4390774 , 204100.76163129, 203910.05167262,
           203039.79102153])

  • y
    (ref)
    float64
    8.528e+04 8.54e+04 ... 8.82e+04

    units :

    arcsec

    array([85280.54745628, 85401.64615691, 85533.45733346, 85071.95361196,
           85190.0038816 , 85241.25666871, 85243.98364865, 85292.25341913,
           85131.16063265, 85111.24062657, 85357.98397506, 85346.34162605,
           85373.82867916, 85370.70823479, 85415.87113667, 85395.62394824,
           85492.02555538, 85460.91728798, 85471.12669078, 85532.14093324,
           85617.194382  , 85626.63752689, 85305.51229701, 85282.46830051,
           85310.81636439, 85427.49027064, 85456.06994034, 85416.00486076,
           85476.74935493, 85400.2013779 , 85464.3091715 , 85423.98027267,
           85570.71853839, 85454.47388494, 85787.22553956, 85655.48458259,
           85765.67559276, 85744.31179296, 85875.90354407, 85914.78036921,
           85494.38469092, 85624.32324549, 85691.30796091, 85694.84181094,
           85747.99105719, 85792.65648535, 85976.74396558, 85938.94443497,
           85963.74290408, 85926.96126273, 86043.04220424, 86067.44870543,
           86067.23323341, 86187.68664664, 86160.55124064, 86214.81195851,
           85180.53669323, 85514.74531458, 85537.08840711, 85776.8084001 ,
           85846.27101861, 86020.68009628, 86214.57620629, 85296.16577882,
           85479.64470943, 85642.96043358, 85743.66835175, 85635.03438512,
           85684.73112184, 85774.66824064, 85770.80495623, 85777.2488775 ,
           85853.82242023, 85453.85563371, 85525.40982515, 85562.64464402,
           85662.56567661, 85819.71405252, 85850.24823511, 85958.5772216 ,
    ...
           87487.43887018, 87545.56474104, 87643.1686493 , 87949.03951986,
           86939.96763959, 87327.03254622, 87395.23304211, 87415.50599452,
           87652.47852484, 87716.02481002, 87324.73140933, 87405.4143668 ,
           87434.25903683, 87486.04289666, 87414.72018726, 87565.14364739,
           87525.8456802 , 87636.02015555, 87665.00814374, 87629.61300315,
           87592.65029963, 87806.03484887, 87821.96419393, 87743.63150638,
           87783.70747546, 87969.48699845, 87544.93655726, 87722.60460291,
           87780.84858721, 88031.99399299, 88106.51945291, 88215.19460616,
           87837.36492625, 87824.36870528, 87958.84120578, 88033.38548525,
           88079.37012319, 88215.12081422, 88172.85787888, 88231.83479933,
           88143.91880796, 88288.56943602, 88329.79324834, 88478.60125768,
           88455.62477372, 88224.39130839, 87544.94472024, 87600.09952735,
           87601.35987663, 87699.64135338, 87745.81816299, 87747.04042555,
           87833.88243708, 87838.30420115, 87961.46163807, 88150.61161521,
           88118.50756841, 88144.72977137, 88054.59804031, 87922.110943  ,
           88105.80955718, 88017.07436459, 88272.38730614, 88451.81916863,
           88293.90751367, 88233.95742285, 88311.593469  , 88333.22024131,
           88533.12162332, 88404.87387926, 88413.80403469, 88517.61820837,
           88413.89292414, 88559.37215987, 88572.70399247, 88520.40933261,
           88200.6989898 ])

  • weight
    (ref)
    float64
    15.21 13.22 13.23 ... 13.86 12.19

    units :

    mag

    name :

    Mean magnitude in the integrated BP band (from 330 nm to 680 nm)

    array([15.20901203, 13.2177496 , 13.23250008, 12.416749  , 14.75032425,
            7.81239843, 13.3903923 , 16.02643585, 15.330369  , 15.3719883 ,
           13.61520863, 14.16744804, 12.51144695, 12.77129459,  7.1205883 ,
           15.01417542, 14.50528431, 14.24950409, 15.44339085, 15.38312817,
            9.57468891, 14.93962955, 11.84294415, 12.88471603, 15.38182735,
           15.28768635, 14.11316204, 14.10231781, 13.80060577, 14.39716244,
           14.09674454, 14.74662971, 15.20835876, 13.86490822, 15.33004189,
           13.52662659, 13.18324471, 14.25382423, 15.31671906, 12.6021471 ,
           13.99712276, 15.34826279,  7.00258923, 13.84567547, 11.07715416,
           16.20565987, 14.44898987, 15.30435276, 11.44377422, 14.74273109,
           14.3312397 , 14.2796917 , 13.8591013 , 10.03634167, 14.85232449,
           15.0987072 , 15.20411777, 12.63183498, 13.58158588, 14.89955425,
           14.35194588, 12.77211189, 14.2283287 , 15.10664463, 14.0704565 ,
           14.73065948, 13.2811327 , 10.41359329, 13.27140713, 13.31294441,
           13.99415779, 15.6078949 , 14.05162144, 12.94872761, 15.70315361,
           15.04654598, 16.20617104, 15.80631065, 12.40056038, 15.38866329,
           11.17952728, 14.68725586, 14.23805714, 11.06431866, 14.35934162,
            7.29156303, 13.23767281, 13.72062016, 13.95710182, 10.97555161,
           14.43372631, 13.33223915, 14.34605503, 14.53803253, 14.59745407,
           11.89101219, 14.64295006, 15.05331516, 12.77182102, 13.70209217,
    ...
           14.45744419, 15.45519066,  9.2005949 , 15.31685543, 15.42233658,
           13.41524506, 14.52486324, 11.62935734, 15.35637188, 16.25976562,
           13.80370331, 11.15873909, 13.55993652, 13.33452892, 11.11133671,
           14.74496555, 16.11065102, 13.1533308 , 14.49634266, 12.87847137,
           12.32761669, 14.84459686, 13.05871296, 14.01003075,  8.38823414,
            6.99309111, 13.17592049, 14.7345047 , 14.79999161,  9.61805153,
           12.10192585, 15.01896763, 14.71880531, 13.54509258, 15.17868137,
           16.49301147, 15.51228905, 14.95617485, 13.67426109, 10.67801952,
           12.52820206, 13.45124626, 12.97446823, 11.62330246, 12.91152477,
           15.4462738 , 13.80534554, 10.9291029 , 13.68243694, 14.75922012,
           11.56293392, 15.00431538, 14.46530724, 12.35663414, 14.6271944 ,
           15.39118576, 14.24361706, 11.96102238, 11.81186581, 14.59864616,
           12.60894489, 14.63958168, 13.20039463, 15.2858696 , 15.49269962,
           10.59644604, 14.61058044, 13.43067265, 14.95638084, 15.1562891 ,
           13.46807671, 13.84461784, 13.08119869, 14.03538132, 14.97915173,
           14.27264786, 15.29339027, 11.26356792, 14.45137024, 15.33295631,
           15.42258739, 14.41109467, 13.98301983, 15.33768654, 14.71689129,
           13.5712471 , 10.62453938, 12.96099758, 15.06739426, 14.7061882 ,
           15.23714638, 14.61572361, 10.78201389, 14.20628452,  7.7300992 ,
           13.09300137, 15.41769695, 13.69031715, 13.85611343, 12.18818665])

  • flux
    (ref, wavelength)
    float64
    0.003126 0.003373 ... 0.1005

    units :

    ph / (nm s cm2)

    array([[0.00312572, 0.00337286, 0.00325256, ..., 0.00852623, 0.00816103,
            0.0081714 ],
           [0.02194741, 0.024397  , 0.02326499, ..., 0.04985743, 0.04757854,
            0.04669773],
           [0.01629205, 0.01498172, 0.01323134, ..., 0.08103125, 0.08205404,
            0.08627887],
           ...,
           [0.00780127, 0.00613003, 0.00518915, ..., 0.07368469, 0.07394849,
            0.07688101],
           [0.01325106, 0.01142473, 0.0098273 , ..., 0.03646348, 0.03726731,
            0.03970125],
           [0.05221722, 0.05668866, 0.05660295, ..., 0.09598034, 0.09463997,
            0.10045612]], shape=(345, 343))

• Indexes: (2)
  • ref
    PandasIndex

    PandasIndex(Index([  0,   1,   2,   3,   4,   5,   6,   7,   8,   9,
           ...
           335, 336, 337, 338, 339, 340, 341, 342, 343, 344],
          dtype='int64', name='ref', length=345))

  • wavelength
    PandasIndex

    PandasIndex(Index([ 336.0,  338.0,  340.0,  342.0,  344.0,  346.0,  348.0,  350.0,  352.0,
            354.0,
           ...
           1002.0, 1004.0, 1006.0, 1008.0, 1010.0, 1012.0, 1014.0, 1016.0, 1018.0,
           1020.0],
          dtype='float64', name='wavelength', length=343))

• Attributes: (3)

  right_ascension :

  56.75 deg

  declination :

  24.1167 deg

  fov_radius :

  0.5 deg

Visualize spectra of selected stars

ds["flux"].isel(ref=slice(None, 9)).plot.line(col="ref", sharey=False, col_wrap=3)

<xarray.plot.facetgrid.FacetGrid at 0x7b2b0f4d2cf0>

ds["flux"].isel(ref=100).plot.line()

[<matplotlib.lines.Line2D at 0x7b2affdb1bd0>]

Visualize scene with magnitude as intensity scale

ds.plot.scatter(x="x", y="y", hue="weight", marker="o", size=8)

<matplotlib.collections.PathCollection at 0x7b2b00db27b0>

Display detector

The new features in the function display_detector will be part of the next release 1.12 (coming soon).

pyxel.display_detector(detector)

Alternative to display_detector to visualize photon and image array in logarithmic scale

xr.DataArray(result.photon).plot(
    norm=colors.LogNorm(
        vmin=0.1,  # 1
        vmax=result.photon.max(),
    )
)

<matplotlib.collections.QuadMesh at 0x7b2af214dd10>

xr.DataArray(result.image).plot(
    norm=colors.LogNorm(
        vmin=1,  # 0.1
        vmax=result.image.max(),
    )
)

<matplotlib.collections.QuadMesh at 0x7b2af251e5d0>

TO DOs:

We have a first nice working version, but still want to improve the models. See https://gitlab.com/esa/pyxel/-/issues/668.