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GLIMPSE Spitzer Data
GLIMPSE I/II/3D Observations (l=+65deg to Galactic Center)
GLIMPSE I/II/3D Observations (Galactic Center to l=-65deg)
GLIMPSE 360 Observations (l=109-174deg)
You can get a close-up map of a region by clicking on the maps above, or by typing a coordinate below. The background images, from ISSA, are shown on a galactic coordinate grid. GLIMPSE I image data sky coverage is shown above as footprints in red for the native resolution mosaics (1.2 arcsec pixels) and yellow for the high resolution mosaics (0.6 arcsec pixels). GLIMPSE II sky coverage is shown in cyan for the native resolution mosaics and magenta for the high resolution mosaics. GLIMPSE 3D image data sky coverage is in black for the native resolution mosaics and green for the high resolution mosaics. GLIMPSE 360 image data sky coverage is in white for the native resolution mosaics and orange for the high resolution mosaics.
Target Selection Single Object
(Name or Coords)
Table Upload
(Multi Object) Instructions 		 
Size (deg):
[maximum 2.0]		 Images must cover coordinate
Coordinate Examples:
  • 249.5272022 -45.8820362 eq
  • 338.50008 +0.74992 ga
  • 16h 38m 06.53s -45d 52m 55.3s Equ J2000
  • M17
Default: Equatorial J2000
Spitzer Data from the "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) Legacy I, II, 3D, and 360 Projects, are available here using spatial and visualization tools (last updated February 2013).
  • Images can be queried using the search form above.
  • Use the Cutouts service to generate smaller "cutout" images.
  • Search the Catalogs and Archives using the Catalog Search service. (NOTE: The GLIMPSE catalog served by Vizier consists of the GLIMPSE I, GLIMPSE II, and GLIMPSE 3D Catalogs. As such, many bright sources have "null" fluxes due to detector nonlinearity; these sources often will have valid fluxes in the corresponding GLIMPSE Archives.)
Two sets of image mosaics are created using the same input data in all four Spitzer IRAC bands (3.6, 4.5, 5.8, 8.0 µm; just 3.6 and 4.5 µm for GLIMPSE 360); they are mosaicked at two different pixel scales (0.6 arcsec aka "high resolution" and 1.2 arcsec pixels aka "native resolution") for science and visualization needs. The FITS headers contain relevant information from both the SSC pipeline processing and the GLIMPSE processing such as IRAC frames included in the mosaicked image and coordinate information.
The GLIMPSE native resolution images (1.2" pixel) come in two versions: v2.0 and v3.5 (labeled "nobkm" and "corr" in GLIMPSE 360). The v3.5 mosaic images match instrumental background variations between the IRAC frames. Instrument artifacts such as full array pull-up, first frame effect and frame pull-down are mostly removed from these images. Since this processing may be removing real sky variations the v2.0 (1.2" pixel) mosaics are also provided since these do not have the background matching.
The canonical papers for GLIMPSE are Benjamin et al. (2003) and Churchwell et al. (2009).
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GLIMPSE I
  • Fifth delivery (DR5, FINAL) from GLIMPSE I; all previous GLIMPSE I image deliveries are superseded by DR5. Appendix A in the GLIMPSE I data products document discusses the differences between the v2.0 GLIMPSE I processing and the superseded v1.0 data products.
  • The coverage of the GLIMPSE I Survey is l=10-65 deg, 295-350 deg, b=+- 1 deg, plus the Observation Strategy Validation (OSV) region at about l=284 deg.
  • SSC pipeline data processings S13.2 and later were used (Reach et al. 2005 calibration).
  • GLIMPSE I image data sky coverage is shown above as footprints in red for the native resolution mosaics (1.2 arcsec pixels) and yellow for the high resolution mosaics (0.6 arcsec pixels).
  • Please see GLIMPSE I Delivery Document v2.0: PDF or PS; additional README files can also be accessed.
GLIMPSE II
  • Final delivery from GLIMPSE II. The nominal GLIMPSE II Survey region is l= -10 deg to 10 deg (details in table below). These data products include all epochs of the GLIMPSE II survey region. They also include the Galactic center data from the General Observer (GO) program GALCEN (PI: Stolovy, Program ID=3677 search Spitzer Data at IRSA), as well as GLIMPSE I data at the boundary of the surveys (at l=10 deg and l=349 deg).
    longitudelatitude
    5<l<10 and 350<l<355-1<b<1
    2<l<5 and 355<l<358-1.5<b<1.5
    0<l<2 and 358<l<360-2<b<2
  • GLIMPSE II image data sky coverage is shown above as footprints in cyan for the native resolution mosaics (1.2 arcsec pixels) and magenta for the high resolution mosaics (0.6 arcsec pixels).
  • Epoch 2 of GLIMPSE II consisted of a single visit at each position. No highly reliable Catalog is produced for this dataset since it requires a source be detected twice in one band. Instead a More Reliable Archive is provided, with the same stringent criteria as the Catalogs except two detections are not required in a single band.
  • Subarray mode observations were obtained at 58 positions. Mosaics of the subarray images are presented with similar tiling to the native resolution GLIMPSE II mosaics. A source list of the 61 extracted sources is available through IRSA's Catalog Search service.
  • Please see GLIMPSE II Delivery Document v2.1: PDF or PS; subarray documentation (PDF, PS); additional README files can also be accessed.
GLIMPSE 3D
  • Final delivery from GLIMPSE 3D.
  • The coverage of the GLIMPSE 3D Survey provides a vertical extension of GLIMPSE I or GLIMPSE II style coverage to higher Galactic latitudes in selected longitude ranges. GLIMPSE 3D adds vertical extensions, generally up to |b| < 3deg, but up to |b| < 4.2 deg in the center of the Galaxy.
  • GLIMPSE 3D image data sky coverage is shown above as footprints in black for the native resolution mosaics (1.2 arcsec pixels) and green for the high resolution mosaics (0.6 arcsec pixels).
  • Epoch 2 of GLIMPSE 3D consisted of a single visit at each position. No highly reliable Catalog is produced for this dataset since it requires a source be detected twice in one band. Instead a More Reliable Archive is provided, with the same stringent criteria as the Catalogs except two detections are not required in a single band.
  • Please see GLIMPSE 3D Delivery Document v1.4: PDF; additional README files can also be accessed.
  • Users who have accessed the GLIMPSE 3D Archive: please read the erratum.
GLIMPSE 360
  • Second delivery from GLIMPSE 360, a Warm Spitzer Exploration Science program with data at 3.6 and 4.5 microns.
  • GLIMPSE 360 provides mid-infrared coverage of the Outer Galaxy: longitudes l=65-265deg excluding l=102-109deg (SMOG) and l=76-82deg (Cygnus-X). The released GLIMPSE 360 data contains source lists for the l=109.0-229.0deg area and images for the l=109.0-174.0deg area.
  • GLIMPSE 360 image data sky coverage is shown above as footprints in white for the native resolution mosaics (1.2 arcsec pixels) and orange for the high resolution mosaics (0.6 arcsec pixels).
  • Please see GLIMPSE 360 Delivery Document v1.1: PDF; additional README files can also be accessed.
These datasets are part of the Enhanced Products data from the Spitzer Science Center (SSC). GLIMPSE I DR5 can also be found at the staging location as 20070416 (Spring '07, includes data patch on Jan. 11, 2008). GLIMPSE II can also be found there as 20080418. GLIMPSE 3D can be found spread across five download locations: 20070717, 20080130, 20080721, 20090114, and 20091102.
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You can also download any of the GLIMPSE I, II, 3D, and 360 images, headers and 3-color previews directly.
Click here for more information and instructions on using Atlas Instructions
Also available is a Program Interface to Atlas.