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Data taken as part of NIRI System Verification (SV) or for other engineering
purposes that are deemed to be of
scientific value are made public after an assessment period typically not longer than 2
months. You are encouraged to take these datasets and assess or use them yourself.
The available NIRI data packages are listed below.
The table includes the data package reference name, (astronomical) target name
and a brief summary of the data.
The description is contained within the data package itself. Click on the
hyperlinks to download the raw or processed data (generally the processing was
taken to a state that allowed quality assessment and therefore may not represent
the best possible reduction e.g. for scientific analysis).
The data sets are saved as gzipped tar files, and should be saved to disk.
For each program there will be one file containing all the reduced images and
documentation. The raw data are distributed in gzipped tar files, one for each
night's data. Calibration data, including calibration unit flats, darks, and
standard star measurements are available in separate gzipped tar files (one for
each night of raw data and one for the reduced data).
You may retrieve these files by using "shift+click" or
"right-click" plus choose "save" from your browser's menu.
In addition to the gzipped tar data sets, preview images and final co-adds
(JPEG or FITS formats) are available for some data. The text files that describe
the data (distributed with the tar files) are also available. Observing
Tool (OT) files in XML format are available for some programs.
Useful Links:
Data Package Name/
Release Date |
Program Title |
Text Summary |
Preview |
Data packages |
GN-2001A-SV-6
1 Nov 2001 |
Deep JKp Imaging of the redshift 0.426
cluster MS1621.5+2640 |
Summary
OT file |
JPEG (partial)
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Reduced (Not yet available)
Raw 2001may20 (76 Mb)
Raw 2001may21 (101 Mb)
Raw 2001may22 (172 Mb)
Raw 2001may23 (157 Mb)
Raw 2001may24 (122 Mb)
Raw 2001may25 ( Mb)
Raw 2001may26 ( Mb)
Raw 2001may27 ( Mb)
Raw 2001may28 ( Mb)
Reduced calib (421 Mb)
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System Verification
images of the z=0.4 cluster MS1621.5+2640 at broadband J and Kprime (1.1 and 2.1 microns).
The total integration time is 18240 sec (5 hr) at Kprime in the overlap region, and
half that on the non-overlapping region. At J the total integration is 16,800 sec
(4.67 hr) in the overlapping region. The median image quality between
0.5 and 0.6 arcsec FWHM. Data were collected 20-28 May 2001. The preview above is
coadded from a subset of the data taken on one night only. The combined and reduced
data set is not yet available.
PIs: David Crampton, Simon Morris, and Inger Jorgensen.
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GN-2001A-SV-19
11 Oct 2001
23 Oct 2001 |
Probing Cosmology with High-Redshift Type Ia Supernovae |
Summary
OT file |
FITS
JPEG
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Reduced (90 Mb)
Raw 2001may20 (139 Mb)
Raw 2001may21 (280 Mb)
Raw 2001may23 (270 Mb)
Raw 2001may24 (316 Mb)
Reduced calib (421 Mb)
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System Verification
images of the type Ia supernova "Satie" at broadband J (1.1 microns). The
total integration time is 30,000 sec (8.33 hr), and the co-added image quality between
0.5 and 0.6 arcsec FWHM. Data collected 20, 21, 23, and 24 May 2001.
PIs: Isobel Hook and Saul Perlmutter.
IMPORTANT NOTE: Airmass, gain, read noise, and
non-linear level header keywords in the reduced
images fixed and replaced on the Gemini ftp site on 23 Oct 2001.
Raw data were unaffected.
Also corrected the total integration time in the paragraph above.
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GN-2001A-SV-20
11 Oct 2001 |
JHKp Imaging of AFGL 2591 |
Summary |
FITS
JPEG
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Reduced (9.4 Mb)
Raw 2001may26 (68 Mb)
Reduced calib (421 Mb)
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Engineering
images of the young star AFGL 2591 at broadband J, H, and Kprime, also
used as a "pretty picture" for public relations (see the
press release for more information).
Total integration time is 2 min at J, 1 min at H and Kprime.
The co-added image quality is between 0.3 and 0.4 arcsec FWHM.
Data collected 26 May 2001. PI: Colin Aspin.
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CAL-GN-2001A-SV
11 Oct 2001 |
Baseline calibrations |
Summary |
-
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Reduced (421 Mb)
Raw 2001may20 (130 Mb)
Raw 2001may21 (205 Mb)
Raw 2001may22 (164 Mb)
Raw 2001may23 (220 Mb)
Raw 2001may24 (266 Mb)
Raw 2001may25 (256 Mb)
Raw 2001may26 (289 Mb)
Raw 2001may27 (267 Mb)
Raw 2001may28 (198 Mb)
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Baseline calibration data collected for all System Verification and
engineering observations taken during the period 20 to 28 May, 2001.
Data sets include calibration unit flat field images, bad pixel masks,
dark frames, and standard star measurements.
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