Gemini Observatory Archive
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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 or reduced data, or for raw data only.


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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
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N20250310S0158.fits [A] GN-2025A-Q-242-5-003 2025-03-10 10:38:58 GMOS-N acqCal OBJECT Feige66 r 1x1 20.00 Pass
N20250310S0159.fits [A] GN-2025A-Q-242-6-001 2025-03-10 10:41:46 GMOS-N partnerCal OBJECT Feige66 R400 : 0.620 1x1 300.00 Pass
N20250310S0160.fits [A] GN-2025A-Q-242-6-002 2025-03-10 10:48:20 GMOS-N partnerCal FLAT GCALflat R400 : 0.620 1x1 65.00 Pass
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Proprietary
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Proprietary
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Proprietary
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Proprietary
N20250331S0073.fits [A] GN-2025A-Q-242-24-003 2025-03-31 11:28:38 GMOS-N acq OBJECT AT2019aalc Host r 1x1 60.00 Pass
N20250331S0074.fits [A] GN-2025A-Q-242-25-001 2025-03-31 11:32:22 GMOS-N partnerCal FLAT GCALflat R400 : 0.620 1x1 65.00 Pass
N20250331S0075.fits [A] GN-2025A-Q-242-25-002 2025-03-31 11:34:50 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 45.00 Pass
N20250331S0076.fits [A] GN-2025A-Q-242-25-003 2025-03-31 11:36:54 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 5.00 Pass
Proprietary
N20250331S0077.fits [A] GN-2025A-Q-242-25-004 2025-03-31 11:38:32 GMOS-N science OBJECT AT2019aalc Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250331S0078.fits [A] GN-2025A-Q-242-25-005 2025-03-31 12:00:09 GMOS-N science OBJECT AT2019aalc Host R400 : 0.613 1x1 1200.00 Pass
N20250331S0079.fits [A] GN-2025A-Q-242-25-006 2025-03-31 12:21:44 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 45.00 Pass
N20250331S0080.fits [A] GN-2025A-Q-242-25-007 2025-03-31 12:23:47 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 5.00 Pass
N20250331S0081.fits [A] GN-2025A-Q-242-25-008 2025-03-31 12:25:15 GMOS-N partnerCal FLAT GCALflat R400 : 0.613 1x1 65.00 Pass
N20250331S0082.fits [A] GN-2025A-Q-242-25-009 2025-03-31 12:27:57 GMOS-N partnerCal FLAT GCALflat R400 : 0.627 1x1 65.00 Pass
N20250331S0083.fits [A] GN-2025A-Q-242-25-010 2025-03-31 12:30:25 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 45.00 Pass
N20250331S0084.fits [A] GN-2025A-Q-242-25-011 2025-03-31 12:32:28 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 5.00 Pass
Proprietary
N20250331S0085.fits [A] GN-2025A-Q-242-25-012 2025-03-31 12:34:06 GMOS-N science OBJECT AT2019aalc Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
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Proprietary
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Proprietary
N20250401S0079.fits [A] GN-2025A-Q-242-26-003 2025-04-01 09:30:18 GMOS-N acq OBJECT AT2022dbl Host r 1x1 60.00 Pass
N20250401S0080.fits [A] GN-2025A-Q-242-27-001 2025-04-01 09:34:49 GMOS-N partnerCal FLAT GCALflat R400 : 0.620 1x1 65.00 Pass
N20250401S0081.fits [A] GN-2025A-Q-242-27-002 2025-04-01 09:37:17 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 45.00 Pass
N20250401S0082.fits [A] GN-2025A-Q-242-27-003 2025-04-01 09:39:20 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 5.00 Pass
Proprietary
N20250401S0083.fits [A] GN-2025A-Q-242-27-004 2025-04-01 09:41:00 GMOS-N science OBJECT AT2022dbl Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250401S0084.fits [A] GN-2025A-Q-242-27-005 2025-04-01 10:04:17 GMOS-N science OBJECT AT2022dbl Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250401S0085.fits [A] GN-2025A-Q-242-27-006 2025-04-01 11:24:24 GMOS-N science OBJECT AT2022dbl Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250401S0086.fits [A] GN-2025A-Q-242-27-007 2025-04-01 11:46:01 GMOS-N science OBJECT AT2022dbl Host R400 : 0.613 1x1 1200.00 Pass
Proprietary
N20250401S0087.fits [A] GN-2025A-Q-242-27-008 2025-04-01 12:07:25 GMOS-N science OBJECT AT2022dbl Host R400 : 0.613 1x1 1200.00 Pass
Proprietary
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N20250401S0089.fits [A] GN-2025A-Q-242-27-010 2025-04-01 12:50:23 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 45.00 Pass
N20250401S0090.fits [A] GN-2025A-Q-242-27-011 2025-04-01 12:52:26 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 5.00 Pass
N20250401S0091.fits [A] GN-2025A-Q-242-27-012 2025-04-01 12:53:54 GMOS-N partnerCal FLAT GCALflat R400 : 0.613 1x1 65.00 Pass
N20250401S0092.fits [A] GN-2025A-Q-242-27-013 2025-04-01 12:56:36 GMOS-N partnerCal FLAT GCALflat R400 : 0.627 1x1 65.00 Pass
N20250401S0093.fits [A] GN-2025A-Q-242-27-014 2025-04-01 12:59:05 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 45.00 Pass
N20250401S0094.fits [A] GN-2025A-Q-242-27-015 2025-04-01 13:01:08 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 5.00 Pass
Proprietary
N20250401S0095.fits [A] GN-2025A-Q-242-27-016 2025-04-01 13:02:46 GMOS-N science OBJECT AT2022dbl Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
N20250401S0096.fits [A] GN-2025A-Q-242-27-017 2025-04-01 13:24:44 GMOS-N science OBJECT AT2022dbl Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
N20250401S0097.fits [A] GN-2025A-Q-242-27-018 2025-04-01 13:50:33 GMOS-N science OBJECT AT2022dbl Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
N20250402S0044.fits [A] [L] GN-2025A-Q-242-28-002 2025-04-02 09:42:23 GMOS-N acq OBJECT AT2020vdq Host r 2x2 30.00 Pass
Proprietary
N20250402S0045.fits [A] [L] GN-2025A-Q-242-28-003 2025-04-02 09:46:17 GMOS-N acq OBJECT AT2020vdq Host r 1x1 90.00 Pass
Proprietary
N20250402S0046.fits [A] GN-2025A-Q-242-28-004 2025-04-02 09:49:32 GMOS-N acq OBJECT AT2020vdq Host r 1x1 90.00 Pass
N20250402S0047.fits [A] GN-2025A-Q-242-29-001 2025-04-02 09:53:46 GMOS-N partnerCal FLAT GCALflat R400 : 0.620 1x1 65.00 Pass
N20250402S0048.fits [A] GN-2025A-Q-242-29-002 2025-04-02 09:56:14 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 45.00 Pass
N20250402S0049.fits [A] GN-2025A-Q-242-29-003 2025-04-02 09:58:17 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 5.00 Pass
Proprietary
N20250402S0050.fits [A] GN-2025A-Q-242-29-004 2025-04-02 09:59:56 GMOS-N science OBJECT AT2020vdq Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250402S0051.fits [A] GN-2025A-Q-242-29-005 2025-04-02 10:21:20 GMOS-N science OBJECT AT2020vdq Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250402S0052.fits-md! [A] GN-2025A-Q-242-29-006 2025-04-02 10:42:44 GMOS-N science OBJECT AT2020vdq Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
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Proprietary
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Proprietary
N20250522S0044.fits [A] GN-2025A-Q-242-30-003 2025-05-22 09:23:46 GMOS-N acq OBJECT AT2022exr Host r 1x1 90.00 Pass
N20250522S0045.fits [A] GN-2025A-Q-242-31-001 2025-05-22 09:27:39 GMOS-N partnerCal FLAT GCALflat R400 : 0.620 1x1 65.00 Pass
N20250522S0046.fits [A] GN-2025A-Q-242-31-002 2025-05-22 09:30:07 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 45.00 Pass
N20250522S0047.fits [A] GN-2025A-Q-242-31-003 2025-05-22 09:32:10 GMOS-N partnerCal ARC CuAr R400 : 0.620 1x1 5.00 Pass
Proprietary
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Proprietary
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Proprietary
N20250522S0050.fits [A] GN-2025A-Q-242-31-006 2025-05-22 10:16:41 GMOS-N science OBJECT AT2022exr Host R400 : 0.620 1x1 1200.00 Pass
Proprietary
N20250522S0051.fits [A] GN-2025A-Q-242-31-007 2025-05-22 10:38:18 GMOS-N science OBJECT AT2022exr Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
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Proprietary
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N20250522S0055.fits [A] GN-2025A-Q-242-31-011 2025-05-22 11:48:17 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 5.00 Pass
N20250522S0056.fits [A] GN-2025A-Q-242-31-012 2025-05-22 11:49:44 GMOS-N partnerCal FLAT GCALflat R400 : 0.627 1x1 65.00 Pass
N20250522S0057.fits [A] GN-2025A-Q-242-31-013 2025-05-22 12:04:21 GMOS-N partnerCal FLAT GCALflat R400 : 0.613 1x1 65.00 Pass
N20250522S0058.fits [A] GN-2025A-Q-242-31-014 2025-05-22 12:06:48 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 45.00 Pass
N20250522S0059.fits [A] GN-2025A-Q-242-31-015 2025-05-22 12:08:51 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 5.00 Pass
Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
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Proprietary
N20250530S0100.fits [A] GN-2025A-Q-242-29-007 2025-05-30 06:10:09 GMOS-N science OBJECT AT2020vdq Host R400 : 0.613 1x1 1200.00 Pass
Proprietary
N20250530S0101.fits [A] GN-2025A-Q-242-29-008 2025-05-30 06:31:37 GMOS-N science OBJECT AT2020vdq Host R400 : 0.613 1x1 1200.00 Pass
Proprietary
N20250530S0102.fits [A] GN-2025A-Q-242-29-009 2025-05-30 06:53:01 GMOS-N science OBJECT AT2020vdq Host R400 : 0.613 1x1 1200.00 Pass
N20250530S0103.fits [A] GN-2025A-Q-242-29-010 2025-05-30 07:14:36 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 45.00 Pass
N20250530S0104.fits [A] GN-2025A-Q-242-29-011 2025-05-30 07:16:39 GMOS-N partnerCal ARC CuAr R400 : 0.613 1x1 5.00 Pass
N20250530S0105.fits [A] GN-2025A-Q-242-29-012 2025-05-30 07:18:06 GMOS-N partnerCal FLAT GCALflat R400 : 0.613 1x1 65.00 Pass
N20250530S0243.fits [A] GN-2025A-Q-242-3-001 2025-05-30 15:34:01 GMOS-N dayCal OBJECT Twilight R400 : 0.620 1x1 30.00 Pass
Proprietary
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Proprietary
N20250531S0005.fits [A] [L] GN-2025A-Q-242-34-002 2025-05-31 06:10:23 GMOS-N acq OBJECT AT2020vdq Host r 1x1 90.00 Pass
Proprietary
N20250531S0006.fits [A] GN-2025A-Q-242-34-003 2025-05-31 06:14:30 GMOS-N acq OBJECT AT2020vdq Host r 1x1 90.00 Pass
N20250531S0007.fits [A] GN-2025A-Q-242-29-013 2025-05-31 06:18:32 GMOS-N partnerCal FLAT GCALflat R400 : 0.627 1x1 65.00 Pass
N20250531S0008.fits [A] GN-2025A-Q-242-29-014 2025-05-31 06:20:59 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 45.00 Pass
N20250531S0009.fits [A] GN-2025A-Q-242-29-015 2025-05-31 06:23:02 GMOS-N partnerCal ARC CuAr R400 : 0.627 1x1 5.00 Pass
Proprietary
N20250531S0010.fits [A] GN-2025A-Q-242-29-016 2025-05-31 06:24:41 GMOS-N science OBJECT AT2020vdq Host R400 : 0.627 1x1 1200.00 Pass
Proprietary
N20250531S0011.fits [A] GN-2025A-Q-242-29-017 2025-05-31 06:46:05 GMOS-N science OBJECT AT2020vdq Host R400 : 0.627 1x1 1200.00 Pass
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