Current Survey Status
Last update: 12/4/2007
We hope to have completed data-taking by the end of 2007.
The first IPHAS observations were taken at the INT between
August and December 2003. Towards the end of the year the first pipeline
processing started at CASU in Cambridge, and was complete by the beginning of
February 2004. A similar pattern of observing and processing has been
repeated for three further observing seasons, with around 2 months observing
allocated annually to date by all three national TAGs. Over a quarter of all
allocated nights have been completely lost to weather (the greatest losses
being in October-November). In the northern sky map below, the
green/yellow/red parts of the survey region are those for which we have
obtained at least one observation. The main areas outstanding (in black) are
in the Galactic third quadrant, as the Plane approaches the celestial
equator.
The above shows the situation after the processing of all 2005 data. Note that the green data points, representing fields meeting basic requirements for acceptance into the final database, were plotted last. This results in an optimistic view of the present status. Our present quantitative estimate is that 72 percent of the survey area has been observed/processed to our preferred quality standard (of seeing better than 1.7 arcseconds). This rises to 78 percent if the seeing acceptance is raised to 2 arcsec. 95 percent of all fields have been observed at least once.
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