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GLIMPSE Spitzer and Ancillary Data
GLIMPSE I Observations

GLIMPSE II Observations

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 and shown on a galactic coordinate grid, cover 15 x 155 degrees and are centered on the galactic center (coords: 0 0 ga). The horizontal blue line indicates the galactic plane and the vertical lines are spaced 45 degrees apart.
Coordinate/Object:
Size (deg):
[maximum 2.0]		     Images must cover coordinate
Coordinate Examples (Default Equatorial J2000) :
249.5272022 -45.8820362 eq
338.50008 +0.74992 ga
16h 38m 06.53s -45d 52m 55.3s Equ J2000
M17

Spitzer Data from the "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) Legacy Project, are available here using spatial and visualization tools:

GLIMPSE I

  • Fifth delivery (DR5, FINAL) from GLIMPSE I; all previous GLIMPSEI image deliveries are superseded by DR5. Appendix A in the GLIMPSEI data products document discusses the differences between the v2.0 GLIMPSEI processing and the superceded v1.0 data products.
  • The coverage of the GLIMPSEI 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).
  • GLIMPSEI image data sky coverage is shown above as footprints in red (3.1x2.4 degree mosaics; 1.2 arcsec pixels) and yellow (1.1x0.8 degree mosaics; 0.6 arcsec pixels). The two sets of GLIMPSEI image mosaics are created using the same input data in all four Spitzer IRAC bands (3.6, 4.5, 5.8, 8.0 µm); they are mosaicked at two different pixel scales for science and visualization needs.

GLIMPSE II

  • First delivery from GLIMPSE II. The nominal GLIMPSEII Survey region is l= -10 deg to 10 deg (details in table below). It excludes the Galactic center area from about l=+- 1 deg, b=+-0.75 deg, which was observed by a GO program (Program ID=3677; search Spitzer Data at IRSA). The next release (v2.0 GLIMPSEII processing) will include the Galactic center data.
    longitude (deg) latitude (deg)
    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

  • SSC pipeline processing version used was S12.4 and is not on the same calibration as the GLIMPSEI S13.2 and later processing. The data used in the processing is from the September 2005 observations and does not include the April 2006 observations.
  • GLIMPSEII image data sky coverage is shown in the second panel above as yellow (1.1x0.8 degree mosaics; 0.6 arcsec pixels), magenta (1.1x1.6 degree mosaics; 0.6 arcsec pixels) and green (1.1x1.2 degree mosaics; 0.6 arcsec pixels) footprints. Mosaics of each band are made for larger areas, with twice the pixel size (1.2 arcsec pixes), and are shown in the same panel, as red (3.1x2.4 degree mosaics; 1.2 arcsec pixels), black (3.1x3.45 degree mosaics; 1.2 arcsec pixels) and cyan (3.1x4.5 degree mosaics; 1.2 arcsec pixels) footprints.

These datasets are part of the Enhanced Products data from the Spitzer Science Center (SSC). GLIMPSEI DR5 can also be found at the staging location as 20070416 (Spring '07, includes data patch on Jan. 11, 2008). GLIMPSEII can also be found there as 2007Jun.

You can also download any of the GLIMPSE I & II images, headers and 3-color previews directly. GLIMPSE I & II Spring '07 source catalogs and archives are available using IRSA's Gator Catalog Search Engine, which allows for complex search queries. IRSA serves additional Legacy Spitzer-related data. Also available are GLIMPSE I & II image "cutouts" using IRSA's Cutouts Service, which is a general tool to create single or multiple small FITS (and JPEGs) image cutouts of datasets archived at IRSA.

Click here for more information and instructions on using Atlas Instructions

IRSA Image