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COSMOS CFHT H-band Data                                         Version 1.0
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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.

These data represent four epochs of imaging on CFHT taken between October
of 2007 and January of 2009 in H band with WIRCAM. These data are NOT psf
homogenized. However, the observations were constrained to all have seeing
of 0.7-0.9".  The filter transmission profile is included in the file
CFHT_filter_H.txt.

If you use these data in your work, please cite it as follows as follows:
McCracken, H.J., Capak, P., Salvato, M., et al. 2010, ApJ, 708, 202

The key characteristics of these data are:

Telescope:			Canada-France-Hawaii 3.6m Telescope
Instrument:			WIRCAM
Effective Wavelength:	1.631um
Filter Width:			0.280um
Flux unit:			nJy
Zero Point			31.4
Area:				~2 sq degrees
Resolution:			0.15"/pix
Seeing:				0.8"
PSF Homogenized:		NO

The data products available here include the following at each of
144 tiled positions:
    
    1) an image in units of nJy
    2) a map of the image RMS in units of nJy

A tile diagram is included with the data.

These data were reduced by Henry J. McCracken (hjmcc@iap.fr), 
Peter Capak (capak@astro.caltech.edu)                                 
and the TERAPIX team (terapix@iap.fr)                                 
Using the TERAPIX pipelines.

SWarp v.2.17.2 and Terapix software from 2009-06-04 were used for the
reduction.  Information on Terapix can be found at:

    http://terapix.iap.fr/           

These data were prepared for release by:

Peter Capak (capak@astro.caltech.edu)         
Patrick Shopbell (pls@astro.caltech.edu)

Further information may be obtained from the COSMOS web page:

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

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August  11, 2009