ACROSS supports a layered approach to metadata. Observatories have Telescopes which have Instruments.
See documentation for more details.
Observatory Metadata
[IXPE] Imaging X-Ray Polarimetry Explorer
9864f892-a980-442c-a0c9-f35e26e598dd
observatory type: SPACE_BASED
url: https://ixpe.msfc.nasa.gov/index.html
Observatory Ephemeris Types
{
"ephemeris_type": "tle",
"priority": 1,
"parameters": {
"norad_id": 49954,
"norad_satellite_name": "IXPE"
}
}Telescopes (1)
[IXPE] Imaging X-Ray Polarimetry Explorer
be6eeadc-9b7c-481d-81bd-4d1314dc0d49
[IXPE] Imaging X-Ray Polarimetry Explorer
be6eeadc-9b7c-481d-81bd-4d1314dc0d49
Instruments (1)
[IXPE] Imaging X-Ray Polarimetry Explorer
96d3dd34-a49e-4618-bef2-6eaca3aa26e6
[IXPE] Imaging X-Ray Polarimetry Explorer
96d3dd34-a49e-4618-bef2-6eaca3aa26e6
Filters (1)
id: e3deb75a-fb6e-49b8-81ba-14c6d4fc0844
created_on: 2025-07-17T18:34:45.368593
name: IXPE Bandpass
peak_wavelength: null
min_wavelength: 1.549802480415003 Å
max_wavelength: 6.199209921660012 Å
is_operational: true
sensitivity_depth_unit: null
sensitivity_depth: null
sensitivity_time_seconds: null
instrument_id: 96d3dd34-a49e-4618-bef2-6eaca3aa26e6
Footprint
[
[
{
"x": -0.1,
"y": -0.1
},
{
"x": 0.1,
"y": -0.1
},
{
"x": 0.1,
"y": 0.1
},
{
"x": -0.1,
"y": 0.1
},
{
"x": -0.1,
"y": -0.1
}
]
] 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
]
]
}