HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 1177266,
"next": "https://observe.lco.global/api/requestgroups/?format=api&limit=10&offset=6140&ordering=-submitter",
"previous": "https://observe.lco.global/api/requestgroups/?format=api&limit=10&offset=6120&ordering=-submitter",
"results": [
{
"id": 2434587,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Tarantula Nebula SII",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "WINDOW_EXPIRED",
"created": "2026-01-30T10:06:28.852168Z",
"modified": "2026-01-30T15:10:14.773906Z",
"requests": [
{
"id": 4098802,
"observation_note": "",
"optimization_type": "TIME",
"state": "WINDOW_EXPIRED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-30T15:10:04.500532Z",
"duration": 6297,
"configurations": [
{
"id": 14336022,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": true,
"sub_exposure_time": 300
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "SII"
},
"mode": "full_frame",
"exposure_time": 600.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Tarantula Nebula",
"ra": 84.64999999999999,
"dec": -69.08638888888889,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-30T13:00:00Z",
"end": "2026-01-30T15:10:00Z"
}
]
}
]
},
{
"id": 2434864,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Tarantula Nebula OIII",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-30T17:18:35.995822Z",
"modified": "2026-01-30T20:57:49.035336Z",
"requests": [
{
"id": 4099081,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-30T20:57:48.977918Z",
"duration": 6297,
"configurations": [
{
"id": 14337108,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": true,
"sub_exposure_time": 300
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 600.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Tarantula Nebula",
"ra": 84.64999999999999,
"dec": -69.08638888888889,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-30T18:30:00Z",
"end": "2026-01-30T21:00:00Z"
}
]
}
]
},
{
"id": 2434867,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Horsehead Nebula Mosaic OIII",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "WINDOW_EXPIRED",
"created": "2026-01-30T17:20:53.692720Z",
"modified": "2026-01-30T23:00:07.218369Z",
"requests": [
{
"id": 4099084,
"observation_note": "",
"optimization_type": "TIME",
"state": "WINDOW_EXPIRED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {
"mosaic_pattern": "line"
},
"modified": "2026-01-30T23:00:03.882678Z",
"duration": 9407,
"configurations": [
{
"id": 14337111,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -3.2397986666666667,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
},
{
"id": 14337112,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 2,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -2.4583333333333335,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
},
{
"id": 14337113,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 3,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -1.6768680000000002,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-30T19:40:00Z",
"end": "2026-01-30T23:00:00Z"
}
]
}
]
},
{
"id": 2434868,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Tarantula Nebula SII",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "WINDOW_EXPIRED",
"created": "2026-01-30T17:28:47.571089Z",
"modified": "2026-01-31T00:00:08.798446Z",
"requests": [
{
"id": 4099085,
"observation_note": "",
"optimization_type": "TIME",
"state": "WINDOW_EXPIRED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T00:00:03.948003Z",
"duration": 6297,
"configurations": [
{
"id": 14337114,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": true,
"sub_exposure_time": 300
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "SII"
},
"mode": "full_frame",
"exposure_time": 600.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Tarantula Nebula",
"ra": 84.64999999999999,
"dec": -69.08638888888889,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-30T20:50:00Z",
"end": "2026-01-31T00:00:00Z"
}
]
}
]
},
{
"id": 2434869,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Horsehead Nebula Mosaic OIII",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-30T17:31:54.999439Z",
"modified": "2026-01-30T22:24:51.067166Z",
"requests": [
{
"id": 4099086,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {
"mosaic_pattern": "line"
},
"modified": "2026-01-30T22:24:51.045161Z",
"duration": 9407,
"configurations": [
{
"id": 14337115,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -3.2397986666666667,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
},
{
"id": 14337116,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 2,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -2.4583333333333335,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
},
{
"id": 14337117,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 3,
"instrument_configs": [
{
"optical_elements": {
"filter": "OIII"
},
"mode": "full_frame",
"exposure_time": 300.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.6,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "Horsehead Nebula",
"ra": 85.24583333333334,
"dec": -1.6768680000000002,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-30T19:40:00Z",
"end": "2026-01-30T23:00:00Z"
}
]
}
]
},
{
"id": 2435219,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Markarian's Chain Synthesis 7A",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-31T04:07:44.517807Z",
"modified": "2026-01-31T08:13:21.077418Z",
"requests": [
{
"id": 4099694,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T08:13:21.027413Z",
"duration": 1197,
"configurations": [
{
"id": 14340732,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "rp"
},
"mode": "full_frame",
"exposure_time": 100.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.36,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "NGC 4438",
"ra": 186.94029395563996,
"dec": 13.00880780455,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-31T07:50:00Z",
"end": "2026-01-31T08:20:00Z"
}
]
}
]
},
{
"id": 2435220,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Markarian's Chain Synthesis 7A",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "CANCELED",
"created": "2026-01-31T04:08:00.323590Z",
"modified": "2026-01-31T04:08:05.537961Z",
"requests": [
{
"id": 4099695,
"observation_note": "",
"optimization_type": "TIME",
"state": "CANCELED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T04:08:05.534685Z",
"duration": 1197,
"configurations": [
{
"id": 14340733,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "rp"
},
"mode": "full_frame",
"exposure_time": 100.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.36,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "NGC 4438",
"ra": 186.94029395563996,
"dec": 13.00880780455,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-31T07:50:00Z",
"end": "2026-01-31T08:20:00Z"
}
]
}
]
},
{
"id": 2435221,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Markarian's Chain Synthesis 7B",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-31T04:08:21.292686Z",
"modified": "2026-01-31T08:11:55.237766Z",
"requests": [
{
"id": 4099696,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T08:11:55.187423Z",
"duration": 1197,
"configurations": [
{
"id": 14340734,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "rp"
},
"mode": "full_frame",
"exposure_time": 100.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.36,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "NGC 4438",
"ra": 186.94029395563996,
"dec": 13.00880780455,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-31T07:50:00Z",
"end": "2026-01-31T08:20:00Z"
}
]
}
]
},
{
"id": 2435222,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Markarian's Chain Synthesis 7C",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-31T04:08:32.107689Z",
"modified": "2026-01-31T08:11:57.246896Z",
"requests": [
{
"id": 4099697,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T08:11:57.194676Z",
"duration": 1197,
"configurations": [
{
"id": 14340735,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "rp"
},
"mode": "full_frame",
"exposure_time": 100.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.36,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "NGC 4438",
"ra": 186.94029395563996,
"dec": 13.00880780455,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-31T07:50:00Z",
"end": "2026-01-31T08:20:00Z"
}
]
}
]
},
{
"id": 2435273,
"submitter": "youzheng",
"proposal": "DDT2025B-001",
"name": "Markarian's Chain Synthesis 8A",
"observation_type": "NORMAL",
"operator": "SINGLE",
"ipp_value": 1.05,
"state": "COMPLETED",
"created": "2026-01-31T07:13:31.795925Z",
"modified": "2026-01-31T08:39:23.200199Z",
"requests": [
{
"id": 4099818,
"observation_note": "",
"optimization_type": "TIME",
"state": "COMPLETED",
"suspend_until": null,
"acceptability_threshold": 100.0,
"configuration_repeats": 1,
"extra_params": {},
"modified": "2026-01-31T08:39:23.184102Z",
"duration": 1197,
"configurations": [
{
"id": 14341460,
"instrument_type": "0M4-SCICAM-QHY600",
"type": "EXPOSE",
"repeat_duration": null,
"extra_params": {
"sub_expose": false
},
"priority": 1,
"instrument_configs": [
{
"optical_elements": {
"filter": "V"
},
"mode": "full_frame",
"exposure_time": 100.0,
"exposure_count": 10,
"rotator_mode": "",
"extra_params": {
"bin_x": 1,
"bin_y": 1,
"offset_ra": 0,
"offset_dec": 0
},
"rois": []
}
],
"constraints": {
"max_airmass": 1.36,
"min_lunar_distance": 30.0,
"max_lunar_phase": 1.0,
"extra_params": {}
},
"acquisition_config": {
"mode": "OFF",
"extra_params": {}
},
"guiding_config": {
"optional": false,
"mode": "ON",
"optical_elements": {},
"exposure_time": null,
"extra_params": {}
},
"target": {
"type": "ICRS",
"name": "NGC 4438",
"ra": 186.94029395563996,
"dec": 13.00880780455,
"proper_motion_ra": 0.0,
"proper_motion_dec": 0.0,
"parallax": 0.0,
"epoch": 2000.0,
"hour_angle": null,
"extra_params": {}
}
}
],
"location": {
"telescope_class": "0m4"
},
"windows": [
{
"start": "2026-01-31T08:15:00Z",
"end": "2026-01-31T08:45:00Z"
}
]
}
]
}
]
}