Gemini Observatory Archive
Help - About - Misc Files
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(no punctuation; separate with spaces) Matches all words. Write !word to reject results that contain it
(no punctuation; separate with spaces) Text search the program Title. Matches all words. Write !word to reject results that contain it
(bibliography code of related publication) Search for data related to a publication by it's bibliography code.
(Name of Target) Enter a target name here. If you don't Resolve the target name into a co-ordinate search, this will do a search on the target name as specified in the phase-II. Be aware that observers sometimes use a different target name to what you expect - this is only really useful if you set up the Phase-II, or otherwise know exactly what target name was used. If you set a Name Resolver and click resolve, we will fetch co-ordinates of your target from the resolver specified and then the search will disregard the target name and search only by co-ordinates. Note that the name resolvers will not work solar system bodies.

Searches on the target name are not case sensitive, and you can use the * character as a wildcard - for example mrk* will find e.g. Mrk42, and *io* will find e.g. Io, Io.eph, Orion, etc.
(Name Resolver) Choose a Name Resolver and click the resolve button to attempt to find the co-ordinates of your named source. If the form has both a target name and co-ordinates, the search will disregard the target name. Note: The name resolvers will only work for objects outside the solar system, there's no capability for meaningful use with moving objects, for example planets.
(HH:MM:SS.ss or decimal degrees) Right Ascension. You can use HH:MM:SS[.ss...] or decimal degrees. In either case you can specify a single value or a range, eg 11:22:33 - 12:34:56. If you enter a single value, also see the Search Radius field.
([+-]DD:MM:SS.ss or decimal degrees) Declination. You can use [+|-]DD:MM:SS[.ss...] or decimal degrees. In either case you can specify a single value or a range, eg 11:22:33 - 12:34:56 or -65:43:21 - -12:34:56. If you enter a single value, also see the Search Radius field.
(arcsecs or decimal degrees) Search radius in arcseconds, unless you specify "d" or "degs" to make it decimal degrees. i.e. 180 means 180 arcseconds, 10degs or 10d means 10 degrees.
If RA and/or dec has been given as a single value (as opposed to a range), this specifies the size of the box around it to search. This is actually a simple search in a square box (in the tangent plane), not a true cone search. Strange things may happen near the poles.
(click to show / hide) Click where it says "Advanced Options" to show or hide the advanced options. (click to show / hide) Click where it says "Column Selection" to show or hide the panel that lets you choose the columns to be shown in the results. You need to click on 'Search' to apply the changes
(or Obs. ID / Data Label. Exact Match) You can put a program ID, Observation ID or Data Label into this box. The search will be for an exact match to what you put in, substring type matches are not provided. Example: GN-2001A-Q-1
(YYYYMMDD or start - end) You can specify 1) an individual date in the form YYYYMMDD, 2) a date range in the form yyyymmdd-YYYYMMDD, or 3) a date-time range in the form yyyymmddThhmmss[.s...]-YYYYMMDDTHHMMSS[.S...]. Examples: 20101231 or 20100101 - 20100131 or 20101122T012345-20101231T231234. You can also specify whether to search strictly on UTC date (note tha Gemini South observing nights span two UTC dates) or on Observing Night, which will use the traditional Gemini scheme of labelling observing nights by the UTC date at the start of the night with a 1400 (+- daylight savings in Chile) local time date rollover.
(Select GMOS for GMOS-N and GMOS-S) Select the instrument you are looking for data from.
(help) Select an Observation Class here, or set it to Any to not search by Observation Class.
(help) Select an Observation Type here, or set it to Any to not search by Observation Type.
(Imaging / Spectroscopy etc) Select Imaging or various Spectroscopy modes here. Spectroscopy implies all spectroscopic modes. Note that not all instruments support all these modes, such searches will return no results.
(help) Select data did or did not use Adaptive Optics, or that used specifically LGS or NGS AO.
(Processing status of data) Reduced data in the archive can have different reduction status. Select here if you would like to search for a particular type of reduced data, or for raw data only.
(Processing Tag) Reduced data in the archive is tagged by processing batch. Select here if you would like to search for a particular set of reduced data. This list populates from the current search results.


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Key: [P]: Preview an image of the data in your browser. [H]: Provenance and History. [D]: Download that one file. [A]: Program Abstract and PI / Co-I details. [L]: observing Log entries. Use the check-boxes to select a subset of the results to download, or if available a download all link is at the end of the table. Click the filename to see the full header in a new tab. Click anything else to add that to your search criteria. You can also save these results as JSON.

Download Filename↑↓ Data Label↑↓ UT Date Time↑↓ Inst↑↓ Class↑↓ Type↑↓ Object↑↓ WaveBand Binning↑↓ ExpT↑↓ QA↑↓
Proprietary
N20260128S0160.fits [A] [L] GN-2025B-DD-116-19-001 2026-01-28 12:27:19 GMOS-N acq OBJECT AT 2019eve r 2x2 10.00 Pass
Proprietary
N20260128S0161.fits [A] GN-2025B-DD-116-19-002 2026-01-28 12:29:00 GMOS-N acq OBJECT AT 2019eve r 1x1 20.00 Pass
Proprietary
N20260128S0162.fits [A] GN-2025B-DD-116-19-003 2026-01-28 12:30:15 GMOS-N acq OBJECT AT 2019eve r 1x1 30.00 Pass
Proprietary
N20260128S0163.fits [A] GN-2025B-DD-116-20-001 2026-01-28 12:33:01 GMOS-N science OBJECT AT 2019eve R831 : 0.680 2x2 450.00 Pass
Proprietary
N20260128S0164.fits [A] GN-2025B-DD-116-20-002 2026-01-28 12:41:10 GMOS-N science OBJECT AT 2019eve R831 : 0.680 2x2 450.00 Pass
[P] [D]
N20260128S0165.fits [A] GN-2025B-DD-116-20-003 2026-01-28 12:49:26 GMOS-N partnerCal FLAT GCALflat R831 : 0.680 2x2 3.00 Pass
[P] [D]
N20260128S0166.fits [A] GN-2025B-DD-116-20-004 2026-01-28 12:50:00 GMOS-N partnerCal ARC CuAr R831 : 0.680 2x2 12.00 Pass
[P] [D]
N20260128S0167.fits [A] GN-2025B-DD-116-20-005 2026-01-28 12:51:01 GMOS-N partnerCal ARC CuAr R831 : 0.690 2x2 12.00 Pass
[P] [D]
N20260128S0168.fits [A] GN-2025B-DD-116-20-006 2026-01-28 12:51:44 GMOS-N partnerCal FLAT GCALflat R831 : 0.690 2x2 3.00 Pass
Proprietary
N20260128S0169.fits [A] GN-2025B-DD-116-20-007 2026-01-28 12:52:33 GMOS-N science OBJECT AT 2019eve R831 : 0.690 2x2 450.00 Pass
Proprietary
N20260128S0170.fits [A] GN-2025B-DD-116-20-008 2026-01-28 13:00:41 GMOS-N science OBJECT AT 2019eve R831 : 0.690 2x2 450.00 Pass
Proprietary
N20260128S0171.fits [A] GN-2025B-DD-116-20-009 2026-01-28 13:09:01 GMOS-N science OBJECT AT 2019eve R831 : 0.700 2x2 450.00 Pass
Proprietary
N20260128S0172.fits [A] GN-2025B-DD-116-20-010 2026-01-28 13:17:10 GMOS-N science OBJECT AT 2019eve R831 : 0.700 2x2 450.00 Pass
[P] [D]
N20260128S0173.fits [A] GN-2025B-DD-116-20-011 2026-01-28 13:25:26 GMOS-N partnerCal FLAT GCALflat R831 : 0.700 2x2 3.00 Pass
[P] [D]
N20260128S0174.fits [A] GN-2025B-DD-116-20-012 2026-01-28 13:26:00 GMOS-N partnerCal ARC CuAr R831 : 0.700 2x2 12.00 Pass
Proprietary
N20260129S0174.fits [A] [L] GN-2025B-DD-116-21-001 2026-01-29 12:33:17 GMOS-N acq OBJECT AT 2019eve r 2x2 10.00 Pass
Proprietary
N20260129S0175.fits [A] GN-2025B-DD-116-21-002 2026-01-29 12:34:58 GMOS-N acq OBJECT AT 2019eve r 1x1 20.00 Pass
Proprietary
N20260129S0176.fits [A] GN-2025B-DD-116-21-003 2026-01-29 12:36:24 GMOS-N acq OBJECT AT 2019eve r 1x1 30.00 Pass
Proprietary
N20260129S0177.fits [A] GN-2025B-DD-116-22-001 2026-01-29 12:38:51 GMOS-N science OBJECT AT 2019eve B1200 : 0.480 2x2 900.00 Pass
Proprietary
N20260129S0178.fits [A] GN-2025B-DD-116-22-002 2026-01-29 12:54:29 GMOS-N science OBJECT AT 2019eve B1200 : 0.480 2x2 900.00 Pass
[P] [D]
N20260129S0179.fits [A] GN-2025B-DD-116-22-003 2026-01-29 13:10:15 GMOS-N partnerCal FLAT GCALflat B1200 : 0.480 2x2 7.00 Pass
[P] [D]
N20260129S0180.fits [A] GN-2025B-DD-116-22-004 2026-01-29 13:10:57 GMOS-N partnerCal ARC CuAr B1200 : 0.480 2x2 40.00 Pass
[P] [D]
N20260129S0181.fits [A] GN-2025B-DD-116-22-005 2026-01-29 13:12:26 GMOS-N partnerCal ARC CuAr B1200 : 0.490 2x2 40.00 Pass
[P] [D]
N20260129S0182.fits [A] GN-2025B-DD-116-22-006 2026-01-29 13:13:42 GMOS-N partnerCal FLAT GCALflat B1200 : 0.490 2x2 7.00 Pass
Proprietary
N20260129S0183.fits [A] GN-2025B-DD-116-22-007 2026-01-29 13:14:35 GMOS-N science OBJECT AT 2019eve B1200 : 0.490 2x2 900.00 Pass
Proprietary
N20260129S0184.fits [A] GN-2025B-DD-116-22-008 2026-01-29 13:30:16 GMOS-N science OBJECT AT 2019eve B1200 : 0.490 2x2 900.00 Pass
Proprietary
N20260129S0185.fits [A] GN-2025B-DD-116-22-009 2026-01-29 13:46:05 GMOS-N science OBJECT AT 2019eve B1200 : 0.500 2x2 900.00 Pass
Proprietary
N20260129S0186.fits [A] GN-2025B-DD-116-22-010 2026-01-29 14:01:44 GMOS-N science OBJECT AT 2019eve B1200 : 0.500 2x2 900.00 Pass
[P] [D]
N20260129S0187.fits [A] GN-2025B-DD-116-22-011 2026-01-29 14:17:30 GMOS-N partnerCal FLAT GCALflat B1200 : 0.500 2x2 7.00 Pass
[P] [D]
N20260129S0188.fits [A] GN-2025B-DD-116-22-012 2026-01-29 14:18:12 GMOS-N partnerCal ARC CuAr B1200 : 0.500 2x2 40.00 Pass
[P] [D]
N20260129S0189.fits [A] [L] GN-2025B-DD-116-9-001 2026-01-29 14:23:13 GMOS-N acqCal OBJECT HZ44 g 1x1 2.00 Pass
[P] [D]
N20260129S0190.fits [A] GN-2025B-DD-116-9-002 2026-01-29 14:24:38 GMOS-N acqCal OBJECT HZ44 g 1x1 20.00 Pass
[P] [D]
N20260129S0191.fits [A] GN-2025B-DD-116-9-003 2026-01-29 14:25:52 GMOS-N acqCal OBJECT HZ44 g 1x1 2.00 Pass
[P] [D]
N20260129S0192.fits [A] GN-2025B-DD-116-10-001 2026-01-29 14:27:33 GMOS-N partnerCal OBJECT HZ44 B1200 : 0.490 2x2 30.00 Pass
[P] [D]
N20260129S0193.fits [A] GN-2025B-DD-116-10-002 2026-01-29 14:28:36 GMOS-N partnerCal FLAT GCALflat B1200 : 0.490 2x2 7.00 Pass
[P] [D]
N20260129S0280.fits [A] GN-2025B-DD-116-11-001 2026-01-29 16:30:07 GMOS-N dayCal ARC CuAr B1200 : 0.490 2x2 40.00 Undefined
[P] [D]
N20260206S0105.fits [A] GN-2025B-DD-116-5-001 2026-02-06 12:55:22 GMOS-N acqCal OBJECT Feige66 g 1x1 2.00 Pass
[P] [D]
N20260206S0106.fits [A] GN-2025B-DD-116-5-002 2026-02-06 12:56:52 GMOS-N acqCal OBJECT Feige66 g 1x1 20.00 Pass
[P] [D]
N20260206S0107.fits [A] GN-2025B-DD-116-5-003 2026-02-06 12:58:20 GMOS-N acqCal OBJECT Feige66 g 1x1 2.00 Pass
[P] [D]
N20260206S0108.fits [A] GN-2025B-DD-116-6-001 2026-02-06 13:00:25 GMOS-N partnerCal OBJECT Feige66 R831 : 0.690 2x2 60.00 Pass
[P] [D]
N20260206S0109.fits [A] GN-2025B-DD-116-6-002 2026-02-06 13:02:42 GMOS-N partnerCal FLAT GCALflat R831 : 0.690 2x2 3.00 Pass
[P] [D]
N20260206S0142.fits [A] GN-2025B-DD-116-7-001 2026-02-06 16:20:44 GMOS-N dayCal ARC CuAr R831 : 0.690 2x2 12.00 Undefined
[P] [D]
N20260206S0390.fits [A] GN-2025B-DD-116-23-001 2026-02-06 20:07:44 GMOS-N dayCal ARC CuAr R831 : 0.690 2x2 12.00 Undefined
- this is always available at this link

Finding Associated Calibrations... This can take several seconds depending on the size of your calibration association search...
You cannot do calibration association on an unconstrained search, or one that hits the search limit. Please revise your original search so that this is not the case.
Finding Associated Obslogs...