Cygnus-X Image Delivery - April 2016 - 1.2" pixel mosaics Background matching and gradient correction done l=~76 deg through ~82 deg, b=~-2.3 to ~4.1 deg 3.1x3.9 deg, 3.1x3.4 deg, 3.1x3.1 deg & 3.1x2.1 deg images This Cygnus-X mosaic data release is comprised of 1.2" pixel mosaics of the 12 second frametime IRAC BCD frames for l=~76 deg through ~82 deg. The angular size of the native resolution tiles are 3.1 deg x 3.9 deg, 3.1x3.4 deg, 3.1x3.1 deg & 3.1x2.1 deg. Data from SSC pipeline processing version S16.1, S18,1 and S18.5 were used in making the images. Background matching and gradient correction were done on these images. The background matching and gradient correction improves offsets between AORs and removes many of the frame pull-ups near bright sources. This processing may be removing real sky variations so we provide these images *in addition* to the images that do not have the background matching. See the Cygnus-X Data Description Document for more information about this processing. Cygnus-X was a 3-visit cryogenic Spitzer survey. For a quick-look of the images, we provide 3-color jpeg files (IRAC bands 1 [3.6] blue, 2 [4.5] green and IRAC band 4 [8.0] red for each area covered by the FITS files. These are rebinned to much lower resolution to make the files small. Each mosaic fits file is about 435 MBytes. jpeg files are up to around 800 KBytes per file. Each mosaic fits file has an associated .hdr file which contains the fits header from the fits file and additional information about the individual frames included in the mosaic image. For example, the associated .hdr file for corr_CYGX_07800-0085_mosaic_I3.fits is corr_CYGX_07800-0085_mosaic_I3.hdr. ========================================================================================= Cygnus-X area (l=~76 deg through ~82 deg, b=~-2.3 to ~4.1 deg) 3.1x3.9 deg mosaics (ch 1,2,4) (deg) (deg) mosaic fits file associated jpg file longitudes covered latitudes covered ----------------------------------- -------------------------------- ------------------ ----------------- corr_CYGX_07500+0050_mosaic_I1.fits corr_CYGX_07500+0050_3.1x3.9.jpg 75.5 to 76.55 -1.45 to +2.45 corr_CYGX_07500+0050_mosaic_I2.fits corr_CYGX_07500+0050_mosaic_I3.fits corr_CYGX_07500+0050_mosaic_I4.fits 3.1x3.4 deg mosaics corr_CYGX_07800-0085_mosaic_I1.fits corr_CYGX_07800-0085_3.1x3.4.jpg 76.45 to 79.55 -2.55 to +0.85 corr_CYGX_07800-0085_mosaic_I2.fits corr_CYGX_07800-0085_mosaic_I3.fits corr_CYGX_07800-0085_mosaic_I4.fits corr_CYGX_07800+0250_mosaic_I1.fits corr_CYGX_07800+0250_3.1x3.4.jpg 76.45 to 79.55 +0.80 to +4.20 corr_CYGX_07800+0250_mosaic_I2.fits corr_CYGX_07800+0250_mosaic_I3.fits corr_CYGX_07800+0250_mosaic_I4.fits 3.1x3.1 deg mosaics corr_CYGX_08100-0070_mosaic_I1.fits corr_CYGX_08100-0070_3.1x3.1.jpg 79.45 to 82.55 -2.25 to +0.85 corr_CYGX_08100-0070_mosaic_I2.fits corr_CYGX_08100-0070_mosaic_I3.fits corr_CYGX_08100-0070_mosaic_I4.fits corr_CYGX_08100+0235_mosaic_I1.fits corr_CYGX_08100+0235_3.1x3.1.jpg 79.45 to 82.55 +0.80 to +3.90 corr_CYGX_08100+0235_mosaic_I2.fits corr_CYGX_08100+0235_mosaic_I3.fits corr_CYGX_08100+0235_mosaic_I4.fits 3.1x2.1 deg mosaics corr_CYGX_08400+0005_mosaic_I1.fits corr_CYGX_08400+0005_3.1x2.1.jpg 82.45 to 83.1 -1.00 to +1.10 corr_CYGX_08400+0005_mosaic_I2.fits corr_CYGX_08400+0005_mosaic_I3.fits corr_CYGX_08400+0005_mosaic_I4.fits