Re: [Fwd: Subaru data]

From: Naoki Yasuda (yasuda@icrr.u-tokyo.ac.jp)
Date: Thu Apr 01 2004 - 17:16:30 PST

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Hi Rob,

>I also need a summary of what images are there and what is what. What
>are the units of the image? Counts, electrons, counts/sec, or what?
>Does the gain appear to be 1? Is the header WCS right?

For individual images before summed,
Pixel values are counts / exposure.
Gains are 2.6 electrons / ADU
(http://www.naoj.org/Observing/Instruments/SCam/parameters.html).
WCS in header are correct within 10-15 arcsec.

---
Naoki Yasuda @ Institute for Cosmic Ray Research
e-mail: yasuda@icrr.u-tokyo.ac.jp

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