RST·DATA

Archive

What Roman has observed

Every exposure the MAST archive lists, since the detectors were switched on on 12 Sept 2026. This is commissioning data, not survey data: the record of when the telescope looked, where, through which filter and for how long.

4,766

Exposures taken

Each one read out on up to 18 detectors

2,715

On the sky

The rest are darks, with the wheel blocked

75.1 h

Time on sky

Summed exposure time

59

Fields observed

Pointings within 2.5° count as one

141,156

Products in MAST

Including 51,545 mosaic tiles

08 Oct 2026

Latest exposure

04:44 UTC

Metadata only. MAST catalogues these products publicly, but the files themselves are not yet retrievable outside the mission, so there are no pictures here. Images reach the gallery when they are released.

Exposures per day

By UTC day of observation. Darks are calibration frames taken with the element wheel in its blocked position.

DarksSky imagesSpectra
02505007501,00012 Sep15 Sep18 Sep21 Sep24 Sep27 Sep30 Sep03 Oct07 Oct
View as table
Day (UTC)Sky imagesSpectraDarksHours on sky
2026-09-1200360.0
2026-09-1300300.0
2026-09-14100220.4
2026-09-1517110147.0
2026-09-164014181.9
2026-09-1700530.0
2026-09-18001350.0
2026-09-19001330.0
2026-09-20380670.7
2026-09-218443123.6
2026-09-2280180.1
2026-09-2313060.5
2026-09-2400200.0
2026-09-25006030.0
2026-09-26005720.0
2026-09-27100890.4
2026-09-282156182.7
2026-09-29293069.4
2026-09-301650127.3
2026-10-0114521210.9
2026-10-0281303315.0
2026-10-035601242.5
2026-10-0412843124.8
2026-10-05982603.2
2026-10-07151002.5
2026-10-08133062.3

Where it has pointed

On-sky exposures, grouped into fields

Observed field, sized by exposuresDefined survey fieldGalactic plane
0h6h18h−60°−30°+30°+60°ELAIS-N1 (northern field)EDFS (southern field)GBTDS Field 1GBTDS Field 2GBTDS Field 3GBTDS Field 4GBTDS Field 5Galactic Center Field12345678

Equatorial J2000, equal-area projection, right ascension increasing to the left. Numbers match the table below.

Through which element

On-sky exposures and summed exposure time

  • F1461,133 · 22.2 h
  • F158370 · 17.1 h
  • F213233 · 5.0 h
  • F184220 · 6.8 h
  • F062216 · 5.4 h
  • F087143 · 3.5 h
  • F106131 · 6.3 h
  • F129125 · 4.0 h
  • P12783 · 2.7 h
  • G15061 · 2.1 h

Fields

Named only where the coordinates settle it: a defined survey field, or the Large Magellanic Cloud. What each pointing was for is not in the metadata.

#FieldRA, Dec (J2000)Galactic l, bExposuresOn skyElementsObserved
1Unnamed250.50°, +36.50°59.1°, +40.9°77614h 19mF087F146F158F21302 Oct 2026
2Galactic bulge survey fields267.44°, −29.16°0.3°, −0.9°58210h 18mF062F087F146F184F21315 Sep – 08 Oct 2026
3Unnamed264.19°, +73.00°104.0°, +31.3°23713h 2mF129F158F18414 Sep – 04 Oct 2026
4Unnamed294.50°, +46.50°79.4°, +12.0°2163h 56mF062F087F106F129F146F158F184F21320 Sep – 08 Oct 2026
5Unnamed303.00°, −20.00°22.9°, −26.4°1209h 48mF106F146F15830 Sep – 01 Oct 2026
6Unnamed254.50°, +34.50°57.1°, +37.3°7558m 24sF062F087F106F129F146F158F184F21328 Sept 2026
7Unnamed24.85°, −50.33°284.6°, −65.1°562h 10mF062F087F146G150P12716 Sep – 21 Sept 2026
8Large Magellanic Cloud80.44°, −69.50°280.2°, −33.1°4750m 45sF062F087F106F129F146F158F184F213G150P12715 Sep – 04 Oct 2026
9Near EDFS (southern field)58.76°, −49.28°257.9°, −48.6°474h 14mF062F087F106F129F158F18429 Sept 2026
10Large Magellanic Cloud73.03°, −67.50°278.6°, −36.2°3230m 45sF062F087F106F129F146F158F184F213G150P12715 Sept 2026
11Unnamed229.50°, −3.50°357.8°, +43.2°282h 23mF062F087F106F129F158F184F21315 Sept 2026
12Unnamed239.50°, +6.00°16.1°, +40.9°282h 23mF062F087F106F129F158F184F21315 Sept 2026

The 12 most-observed of 59 fields. All of them are on the map.

Latest exposures

The twenty most recent on-sky exposures in the mirror

Start (UTC)ElementExposureRA, Dec (J2000)DetectorsProgram
08 Oct 2026, 04:28F21366 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:26F21366 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:25F21366 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:24F21366 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:21F08766 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:20F08766 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:18F08766 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:17F08766 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:15F14660 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:14F14660 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:13F14660 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:11F14660 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:10F18466 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:08F18466 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:07F18466 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:05F18466 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:04F15866 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:02F15866 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 04:01F15866 s294.378°, +46.441°181043MAST ↗
08 Oct 2026, 03:59F15866 s294.378°, +46.441°181043MAST ↗