GLIMPSE360 Source Lists Data Release for the l=109.0-169.0 deg area December 2011 Single frame photometry; Highly Reliable Catalog, More Complete Archive IRAC bands 1 (3.6 um) and 2 (4.5 um) bandmerged with 2MASS J, H, Ks ===================================================================== 1. Overview ===================================================================== This GLIMPSE360 source list data release is comprised of IPAC Tables of the GLIMPSE360 Catalogs and Archives for l=109.0-169.0 deg. The data were taken in HDR mode: 12 sec and 0.6 sec FT and there are nominally 3 visits on the sky. Data processed by SSC pipeline processing S18.18 were used to make the source lists. The format for the GLIMPSE360 source lists is the same as the previous GLIMPSE (GLIMPSEI, GLIMPSEII, GLIMPSE3D) source lists. Even though bands 3 (5.8 um) & 4 (8 um) are not used in the Spitzer Warm Mission, we have fields for them in our source lists, filled in by null values. These source lists are a result of doing photometry on each IRAC frame, averaging all detections of a single band (in-band merge), then doing the merging of all wavelengths, including 2MASS J, H, and Ks, at a given position on the sky (cross-band merge). The GLIMPSE360 Catalog is a more reliable source list, and the Archive is a more complete list both in number of sources and flux measurements at each wavelength (less nulling of fluxes). The main differences between the Catalog and Archive are 1) fluxes brighter than a threshold that marks a nonlinear regime are nulled (removed) in the Catalog; 2) sources within 2" of another are culled (removed) from the Catalog, whereas the Archive allows sources as close as 0.5" from another; 3) sources within the PSF profile of a saturated source are culled from the Catalog but not the Archive; and 4) the Catalog has higher signal-to-noise thresholds and slightly more stringent acceptance criteria. The single frame photometry source list fluxes were extracted from the IRAC frames using a modified version of DAOPHOT (Stetson 1987) to perform the PSF fitting. See http://www.astro.wisc.edu/glimpse/glimpse_photometry_v1.0.pdf for more details about the point source extraction. The Warm Mission array-location-dependent photometric corrections (section 3.5 in http://irsa.ipac.caltech.edu/data/SPITZER/docs/irac/warmfeatures/) were applied to the source lists. When making the source lists, the area has been split into sub-areas that are 4 degrees wide in longitude, all latitudes in this longitude range. There is a Catalog and an Archive for each sub-area. For the l=109-169 deg segment, we have 10,732,834 Catalog sources and 12,075,745 Archive sources. ===================================================================== 2. Files in the GLIMPSE360 December 2011 Source Lists Release. ===================================================================== A. GLIMPSE360_source_lists_dec2011.README - This file. B. Catalog & Archive Files in IPAC Table Formats nominal approx longitude latitude Catalog No. of Archive No. of area covered area covered Filename Catalog Filename Archive (degrees) (degrees) Sources Sources ---------- ------------ -------------------- -------- -------------------- -------- 108-113 -0.45 to +3.15 GLM360C_l108-113.tbl 918894 GLM360A_l108-113.tbl 1066750 113-117 -0.45 to +3.15 GLM360C_l113-117.tbl 918746 GLM360A_l113-117.tbl 1064559 117-121 -0.45 to +3.15 GLM360C_l117-121.tbl 882760 GLM360A_l117-121.tbl 1012578 121-125 -0.6 to +3.0 GLM360C_l121-125.tbl 841261 GLM360A_l121-125.tbl 957690 125-129 -0.6 to +3.0 GLM360C_l125-129.tbl 805999 GLM360A_l125-129.tbl 915126 129-133 -0.85 to +2.75 GLM360C_l129-133.tbl 760036 GLM360A_l129-133.tbl 856559 133-137 -0.85 to +2.75 GLM360C_l133-137.tbl 678140 GLM360A_l133-137.tbl 763766 137-141 -0.85 to +2.75 GLM360C_l137-141.tbl 680866 GLM360A_l137-141.tbl 763960 141-145 -1.15 to +2.65 GLM360C_l141-145.tbl 705391 GLM360A_l141-145.tbl 781206 145-149 -1.15 to +2.65 GLM360C_l145-149.tbl 711105 GLM360A_l145-149.tbl 783899 149-153 -1.30 to +2.50 GLM360C_l149-153.tbl 614824 GLM360A_l149-153.tbl 677533 153-157 -1.25 to +2.35 GLM360C_l153-157.tbl 568813 GLM360A_l153-157.tbl 622952 157-161 -1.25 to +2.35 GLM360C_l157-161.tbl 556926 GLM360A_l157-161.tbl 610935 161-165 -1.45 to +2.15 GLM360C_l161-165.tbl 550370 GLM360A_l161-165.tbl 606806 165-169 -1.45 to +2.15 GLM360C_l165-169.tbl 538703 GLM360A_l165-169.tbl 591426 -------- -------- 10732834 12075745 C. Data Dictionary for IPAC Tables and a Notes file with basic information about some of the fields in the source list entry. GLM360C.tbl.dd - Data Dictionary for the Catalog IPAC Tables GLM360A.tbl.dd - Data Dictionary for the Archive IPAC Tables (exactly the same as GLM360C.tbl.dd) GLIMPSE360.notes - Notes on the source designation, close source flag, source quality flag and flux calculation method flag used in the source lists. D. Documentation The GLIMPSE360 data document (http://www.astro.wisc.edu/sirtf/glimpse360_dataprod_v1.0.pdf) describes the GLIMPSE processing, products and formats. Other existing documentation includes the GLIMPSE360.notes mentioned above, GLIMPSE Data Products and Quality Assurance Documents and a document describing in detail our point source photometry steps. See http://www.astro.wisc.edu/glimpse/docs.html