ACROSS supports a layered approach to metadata. Observatories have Telescopes which have Instruments.
See documentation for more details.
Observatory Metadata
[Fermi] Fermi Gamma-ray Space Telescope
3417942b-7cc9-4e91-a9ab-fbc800871ef5
observatory type: SPACE_BASED
url: https://fermi.gsfc.nasa.gov
Observatory Ephemeris Types
{
"ephemeris_type": "tle",
"priority": 1,
"parameters": {
"norad_id": 33053,
"norad_satellite_name": "FGRST (GLAST)"
}
}Telescopes (2)
[LAT] Large Area Telescope
222d5f4a-8fd6-4299-a696-b3a6cb13d7bc
[LAT] Large Area Telescope
222d5f4a-8fd6-4299-a696-b3a6cb13d7bc
Instruments (1)
[LAT] Large Area Telescope
7f7b97ed-e341-476f-908b-7bad8740b31b
[LAT] Large Area Telescope
7f7b97ed-e341-476f-908b-7bad8740b31b
Filters (1)
id: 415f0c75-111e-4970-b89d-b55cc5975a81
created_on: 2025-07-17T18:34:45.491578
name: Fermi LAT Bandpass
peak_wavelength: null
min_wavelength: 4.132806614439528e-8 Å
max_wavelength: 0.0006199209921660012 Å
is_operational: true
sensitivity_depth_unit: null
sensitivity_depth: null
sensitivity_time_seconds: null
instrument_id: 7f7b97ed-e341-476f-908b-7bad8740b31b
Footprint
[
[
{
"x": 50,
"y": 0
},
{
"x": 49.97507945630869,
"y": -1.5784274882405265
},
{
"x": 49.90034266657467,
"y": -3.155281565633682
},
{
"x": 49.7758641300553,
"y": -4.728990389742247
},
{
"x": 49.601767929662884,
"y": -6.297985253385878
},
{
"x": 49.378227608276184,
"y": -7.860702148362539
},
{
"x": 49.10546599574902,
"y": -9.415583324485894
},
{
"x": 48.78375498678868,
"y": -10.961078842384566
},
{
"x": 48.41341526992536,
"y": -12.495648118515417
},
{
"x": 47.99481600784285,
"y": -14.017761460850723
},
{
"x": 47.52837446938914,
"y": -15.525901593708442
},
{
"x": 47.01455561363378,
"y": -17.01856517020564
},
{
"x": 46.45387162638653,
"y": -18.49426427082734
},
{
"x": 45.84688140963944,
"y": -19.95152788661705
},
{
"x": 45.19419002444118,
"y": -21.38890338551048
},
{
"x": 44.49644808775901,
"y": -22.804957960350798
},
{
"x": 43.75435112392969,
"y": -24.19828005714194
},
{
"x": 42.9686388713456,
"y": -25.567480782116338
},
{
"x": 42.14009454506753,
"y": -26.91119528621443
},
{
"x": 41.26954405609881,
"y": -28.228084125595903
},
{
"x": 40.357855188099265,
"y": -29.51683459682642
},
{
"x": 39.40593673235962,
"y": -30.77616204540896
},
{
"x": 38.41473758189854,
"y": -32.00481114635536
},
{
"x": 37.38524578558546,
"y": -33.20155715552156
},
{
"x": 36.31848756323197,
"y": -34.36520713045921
},
{
"x": 35.21552628263361,
"y": -35.494601119566646
},
{
"x": 34.077461399581686,
"y": -36.58861331835384
},
{
"x": 32.905427361901886,
"y": -37.64615319166885
},
{
"x": 31.700592478611934,
"y": -38.66616656076695
},
{
"x": 30.464157755325832,
"y": -39.64763665413893
},
{
"x": 29.197355697065312,
"y": -40.58958512105104
},
{
"x": 27.90144907967201,
"y": -41.49107300678629
},
{
"x": 26.57772969104507,
"y": -42.35120168861494
},
{
"x": 25.227517043458874,
"y": -43.16911377156117
},
{
"x": 23.852157058244476,
"y": -43.94399394307302
},
{
"x": 22.453020724146008,
"y": -44.6750697857437
},
{
"x": 21.03150273068921,
"y": -45.36161254727407
},
{
"x": 19.58902007792466,
"y": -46.00293786690873
},
{
"x": 18.127010663931227,
"y": -46.598406457621735
},
{
"x": 16.646931851488052,
"y": -47.14742474337185
},
{
"x": 15.150259015343636,
"y": -47.64944545079196
},
{
"x": 13.63848407153016,
"y": -48.10396815472314
},
{
"x": 12.11311399018916,
"y": -48.51053977704932
},
{
"x": 10.575669293390954,
"y": -48.86875503833536
},
{
"x": 9.027682539445117,
"y": -49.17825686181849
},
{
"x": 7.470696795213047,
"y": -49.43873672935013
},
{
"x": 5.906264097945402,
"y": -49.64993498893348
},
{
"x": 4.335943908177536,
"y": -49.81164111355034
},
{
"x": 2.7613015552254083,
"y": -49.923693911018944
},
{
"x": 1.183906676831205,
"y": -49.985981684673895
},
{
"x": -0.3946683454856655,
"y": -49.99844234470782
},
{
"x": -1.972849953812635,
"y": -49.961063470063785
},
{
"x": -3.5490649824008,
"y": -49.87388232081694
},
{
"x": -5.121742225830665,
"y": -49.736985801032844
},
{
"x": -6.689314005223951,
"y": -49.550510372139605
},
{
"x": -8.250217730939966,
"y": -49.314641916900136
},
{
"x": -9.802897460198901,
"y": -49.029615554120205
},
{
"x": -11.345805448079501,
"y": -48.69571540427689
},
{
"x": -12.877403690344835,
"y": -48.31327430630109
},
{
"x": -14.396165456558318,
"y": -47.88267348579648
},
{
"x": -15.900576811961905,
"y": -47.40434217502548
},
{
"x": -17.389138126599118,
"y": -46.87875718504125
},
{
"x": -18.860365570178796,
"y": -46.30644243039207
},
{
"x": -20.312792591189453,
"y": -45.68796840687184
},
{
"x": -21.74497137878965,
"y": -45.02395162283758
},
{
"x": -23.155474306017386,
"y": -44.31505398466044
},
{
"x": -24.542895352879675,
"y": -43.561982136922985
},
{
"x": -25.905851507903876,
"y": -42.765486758020586
},
{
"x": -27.242984146753525,
"y": -41.926361811868865
},
{
"x": -28.552960386534735,
"y": -41.04544375646313
},
{
"x": -29.834474414442795,
"y": -40.1236107100789
},
{
"x": -31.086248789424754,
"y": -39.161781575944524
},
{
"x": -32.307035715560495,
"y": -38.16091512625842
},
{
"x": -33.49561828589277,
"y": -37.12200904646416
},
{
"x": -34.65081169546659,
"y": -36.046098940735824
},
{
"x": -35.77146442236856,
"y": -34.934257299665326
},
{
"x": -36.85645937558894,
"y": -33.78759243118044
},
{
"x": -37.90471500856227,
"y": -32.60724735575934
},
{
"x": -38.9151863972765,
"y": -31.394398667042918
},
{
"x": -39.88686628187597,
"y": -30.150255358980726
},
{
"x": -40.81878607071995,
"y": -28.87605762067943
},
{
"x": -41.71001680589587,
"y": -27.573075600155377
},
{
"x": -42.559670089224724,
"y": -26.24260813822342
},
{
"x": -43.36689896783574,
"y": -24.88598147378415
},
{
"x": -44.130898778427344,
"y": -23.50454792180015
},
{
"x": -44.85090794937317,
"y": -22.099684525278956
},
{
"x": -45.52620875987311,
"y": -20.672791682606707
},
{
"x": -46.15612805539303,
"y": -19.22529175160055
},
{
"x": -46.74003791867991,
"y": -17.75862763167143
},
{
"x": -47.277356295683354,
"y": -16.27426132551058
},
{
"x": -47.767547575759735,
"y": -14.773672481733502
},
{
"x": -48.21012312558059,
"y": -13.258356919933936
},
{
"x": -48.60464177621285,
"y": -11.729825139618445
},
{
"x": -48.95071026288572,
"y": -10.189600814507617
},
{
"x": -49.247983617005524,
"y": -8.63921927370497
},
{
"x": -49.49616551002786,
"y": -7.08022597124758
},
{
"x": -49.695008548844385,
"y": -5.514174945563754
},
{
"x": -49.84431452238966,
"y": -3.9426272703738303
},
{
"x": -49.94393459922218,
"y": -2.36714949857791
},
{
"x": -49.993769475882864,
"y": -0.789312100681841
},
{
"x": -49.993769475882864,
"y": 0.7893121006818509
},
{
"x": -49.94393459922218,
"y": 2.367149498577898
},
{
"x": -49.84431452238966,
"y": 3.942627270373818
},
{
"x": -49.69500854884439,
"y": 5.514174945563742
},
{
"x": -49.49616551002786,
"y": 7.0802259712475895
},
{
"x": -49.247983617005524,
"y": 8.639219273704981
},
{
"x": -48.95071026288573,
"y": 10.189600814507607
},
{
"x": -48.60464177621285,
"y": 11.72982513961843
},
{
"x": -48.21012312558059,
"y": 13.258356919933926
},
{
"x": -47.76754757575974,
"y": 14.773672481733492
},
{
"x": -47.277356295683354,
"y": 16.27426132551059
},
{
"x": -46.74003791867992,
"y": 17.75862763167142
},
{
"x": -46.15612805539303,
"y": 19.225291751600537
},
{
"x": -45.52620875987311,
"y": 20.672791682606697
},
{
"x": -44.85090794937318,
"y": 22.099684525278946
},
{
"x": -44.130898778427344,
"y": 23.504547921800157
},
{
"x": -43.36689896783573,
"y": 24.885981473784156
},
{
"x": -42.55967008922473,
"y": 26.242608138223417
},
{
"x": -41.710016805895876,
"y": 27.573075600155367
},
{
"x": -40.81878607071996,
"y": 28.876057620679425
},
{
"x": -39.886866281875974,
"y": 30.150255358980715
},
{
"x": -38.9151863972765,
"y": 31.39439866704292
},
{
"x": -37.90471500856227,
"y": 32.60724735575933
},
{
"x": -36.856459375588955,
"y": 33.787592431180435
},
{
"x": -35.771464422368574,
"y": 34.93425729966532
},
{
"x": -34.6508116954666,
"y": 36.04609894073581
},
{
"x": -33.49561828589275,
"y": 37.12200904646416
},
{
"x": -32.3070357155605,
"y": 38.16091512625841
},
{
"x": -31.086248789424765,
"y": 39.161781575944524
},
{
"x": -29.834474414442784,
"y": 40.12361071007891
},
{
"x": -28.55296038653475,
"y": 41.04544375646312
},
{
"x": -27.242984146753518,
"y": 41.92636181186887
},
{
"x": -25.905851507903886,
"y": 42.76548675802058
},
{
"x": -24.542895352879686,
"y": 43.56198213692298
},
{
"x": -23.155474306017375,
"y": 44.31505398466044
},
{
"x": -21.74497137878966,
"y": 45.02395162283758
},
{
"x": -20.312792591189442,
"y": 45.68796840687184
},
{
"x": -18.860365570178818,
"y": 46.30644243039205
},
{
"x": -17.38913812659912,
"y": 46.87875718504125
},
{
"x": -15.900576811961894,
"y": 47.404342175025484
},
{
"x": -14.396165456558332,
"y": 47.882673485796474
},
{
"x": -12.877403690344824,
"y": 48.313274306301096
},
{
"x": -11.345805448079524,
"y": 48.69571540427688
},
{
"x": -9.802897460198903,
"y": 49.029615554120205
},
{
"x": -8.250217730939944,
"y": 49.314641916900136
},
{
"x": -6.689314005223963,
"y": 49.550510372139605
},
{
"x": -5.121742225830655,
"y": 49.73698580103285
},
{
"x": -3.549064982400812,
"y": 49.87388232081694
},
{
"x": -1.972849953812636,
"y": 49.961063470063785
},
{
"x": -0.3946683454856888,
"y": 49.99844234470782
},
{
"x": 1.1839066768311928,
"y": 49.985981684673895
},
{
"x": 2.761301555225418,
"y": 49.923693911018944
},
{
"x": 4.335943908177524,
"y": 49.81164111355034
},
{
"x": 5.906264097945401,
"y": 49.64993498893348
},
{
"x": 7.470696795213024,
"y": 49.43873672935013
},
{
"x": 9.027682539445104,
"y": 49.1782568618185
},
{
"x": 10.575669293390963,
"y": 48.86875503833536
},
{
"x": 12.113113990189147,
"y": 48.51053977704932
},
{
"x": 13.638484071530158,
"y": 48.10396815472314
},
{
"x": 15.150259015343615,
"y": 47.64944545079197
},
{
"x": 16.646931851488052,
"y": 47.14742474337185
},
{
"x": 18.127010663931237,
"y": 46.598406457621735
},
{
"x": 19.589020077924644,
"y": 46.00293786690873
},
{
"x": 21.031502730689215,
"y": 45.36161254727406
},
{
"x": 22.45302072414599,
"y": 44.675069785743716
},
{
"x": 23.852157058244476,
"y": 43.94399394307302
},
{
"x": 25.227517043458885,
"y": 43.169113771561165
},
{
"x": 26.57772969104506,
"y": 42.35120168861495
},
{
"x": 27.901449079672012,
"y": 41.49107300678629
},
{
"x": 29.197355697065298,
"y": 40.589585121051044
},
{
"x": 30.464157755325832,
"y": 39.64763665413893
},
{
"x": 31.700592478611945,
"y": 38.666166560766946
},
{
"x": 32.90542736190187,
"y": 37.64615319166886
},
{
"x": 34.0774613995817,
"y": 36.588613318353836
},
{
"x": 35.2155262826336,
"y": 35.49460111956665
},
{
"x": 36.31848756323197,
"y": 34.36520713045921
},
{
"x": 37.38524578558543,
"y": 33.201557155521584
},
{
"x": 38.41473758189853,
"y": 32.004811146355365
},
{
"x": 39.40593673235963,
"y": 30.77616204540895
},
{
"x": 40.35785518809926,
"y": 29.516834596826435
},
{
"x": 41.26954405609881,
"y": 28.228084125595903
},
{
"x": 42.14009454506752,
"y": 26.91119528621445
},
{
"x": 42.9686388713456,
"y": 25.56748078211634
},
{
"x": 43.754351123929695,
"y": 24.198280057141925
},
{
"x": 44.496448087759006,
"y": 22.804957960350812
},
{
"x": 45.19419002444118,
"y": 21.388903385510478
},
{
"x": 45.84688140963943,
"y": 19.95152788661707
},
{
"x": 46.45387162638652,
"y": 18.494264270827347
},
{
"x": 47.01455561363378,
"y": 17.018565170205633
},
{
"x": 47.52837446938914,
"y": 15.525901593708454
},
{
"x": 47.99481600784285,
"y": 14.017761460850716
},
{
"x": 48.41341526992535,
"y": 12.49564811851544
},
{
"x": 48.78375498678868,
"y": 10.961078842384572
},
{
"x": 49.10546599574902,
"y": 9.415583324485882
},
{
"x": 49.378227608276184,
"y": 7.860702148362552
},
{
"x": 49.60176792966289,
"y": 6.297985253385874
},
{
"x": 49.77586413005529,
"y": 4.728990389742269
},
{
"x": 49.900342666574666,
"y": 3.1552815656336857
},
{
"x": 49.97507945630869,
"y": 1.5784274882405123
},
{
"x": 50,
"y": 1.22e-14
},
{
"x": 50,
"y": 0
}
]
] Constraints (4)
{
"short_name": "Sun",
"name": "Sun Angle",
"min_angle": 45,
"max_angle": null
} {
"short_name": "Moon",
"name": "Moon Angle",
"min_angle": 20,
"max_angle": null
} {
"short_name": "Earth",
"name": "Earth Limb",
"min_angle": 20,
"max_angle": null
} {
"short_name": "SAA",
"name": "South Atlantic Anomaly",
"polygon": [
[
33.9,
-30
],
[
24.5,
-22.6
],
[
-18.6,
2.5
],
[
-25.7,
5.2
],
[
-36,
5.2
],
[
-42,
4.6
],
[
-58.8,
0.7
],
[
-93.1,
-8.6
],
[
-97.5,
-9.9
],
[
-98.5,
-12.5
],
[
-92.1,
-21.7
],
[
-86.1,
-30
],
[
33.9,
-30
]
]
} [GBM] Gamma-ray Burst Monitor
6fd90826-c3c9-4ad0-be01-63ed88a8f484
[GBM] Gamma-ray Burst Monitor
6fd90826-c3c9-4ad0-be01-63ed88a8f484
Instruments (1)
[GBM] Gamma-ray Burst Monitor
1c80c356-dc44-404f-aeba-060097a7a59d
[GBM] Gamma-ray Burst Monitor
1c80c356-dc44-404f-aeba-060097a7a59d
Filters (1)
id: 81f8bd53-49f6-4a17-9395-86b87c2ac9e8
created_on: 2025-07-17T18:34:45.491585
name: Fermi GBM Bandpass
peak_wavelength: null
min_wavelength: 0.000309960496083006 Å
max_wavelength: 1.549802480415003 Å
is_operational: true
sensitivity_depth_unit: null
sensitivity_depth: null
sensitivity_time_seconds: null
instrument_id: 1c80c356-dc44-404f-aeba-060097a7a59d
Constraints (2)
{
"short_name": "Earth",
"name": "Earth Limb",
"min_angle": 0,
"max_angle": null
} {
"short_name": "SAA",
"name": "South Atlantic Anomaly",
"polygon": [
[
33.9,
-30
],
[
24.5,
-22.6
],
[
-18.6,
2.5
],
[
-25.7,
5.2
],
[
-36,
5.2
],
[
-42,
4.6
],
[
-58.8,
0.7
],
[
-93.1,
-8.6
],
[
-97.5,
-9.9
],
[
-98.5,
-12.5
],
[
-92.1,
-21.7
],
[
-86.1,
-30
],
[
33.9,
-30
]
]
}