Dear dog,
I suggest we send this email to the cfhtls mailing list:
Dear CFHTLS registered users
The Synoptic T0004 Table is not completed and opened to public,
without restriction. This table provides useful complementary
information about the release and all quality assessment meta-data built
during the production of the release.
The T0004 release has important new features as compared to T0003:
- 2 series of Deep data :
. 25% best seeing images stack (D25: ugriz with seeing down to 0.60" for
some fields with exp. time up to 15hrs) and
. 85% best seeing images stack : the deepest wide field ever produced
with a 4-meter telescope (D85: up to 50 hrs in some fields)
- Addition of the W4 wide field with 11 deg2 complete in ugriz
- New astrometry: done with 2MASS instead of USNO. It provides more
accurate and more stable astrometric calibration than T0003 for ALL
fields (a gain in rms internal and external error position by a factor
of 2). It also provides a more stable an accurate field-to-field
photometric calibration.
- Number of Deep stacks: 40 (20 D25+20 D85)
- Number of Wide stacks: 524 (35 u, 133 g, 173 r, 137 i, 46 z)
More information is available through the T0004 summary
http://terapix.iap.fr/rubrique.php?id_rubrique=241
as well as the Synoptic T0004 Table entry page
http://terapix.iap.fr/article.php?id_article=724
CFHT/CADC/Terapix
Received on Fri Jul 13 2007 - 02:46:00 HST