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COSMOS HST/ACS Mosaic Data                           using Version 1.2 data
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The Cosmic Evolution Survey (COSMOS) is an HST Treasury Project to survey
a 2 square degree equatorial field, centered on RA=10:00:28.6 and
DEC=+02:12:21.0, using the ACS camera. The project also incorporates major
commitments from other observatories around the world, including the VLA
radio telescope, ESO's VLT in Chile, ESA's XMM X-ray satellite, and the
Japanese 8-meter Subaru telescope in Hawaii.

This README describes the mosaic of the complete ACS observations.

The COSMOS ACS Mosaic was created by Anton Koekemoer at STScI, using ACS
data version 1.2. Included in the mosaic are 579 pointings across the two
square degrees of the survey, observed using the F814W (I-band) filter.

	Instrument:		HST Advanced Camera for Surveys (ACS)
	Dates of observations:	Cycle 12 & 13 (Jul 2003 - Jun 2005)
	Observing time:		4 exposures / 1 orbit / pointing
	Filter:			F814W (I-band)
	Area:			2 sq deg
	Resolution:		0.05"/pixel (drizzled data)

The ACS mosaic is 100,800 x 100,800 pixels in a TAN projection, with 
0.05"/pixels.

Further information may be obtained from the main COSMOS web page:

	http://cosmos.astro.caltech.edu/

or from Anton Koekemoer's COSMOS ACS web page:

	http://www-int.stsci.edu/~koekemoe/cosmos/

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Patrick Shopbell, for the COSMOS Team                        August 1, 2005
pls@astro.caltech.edu