Subject: R.E. Plate scale on DSC

From: SKENT@FNALV.FNAL.GOV

Submitted: Tue, 17 Oct 1995 6:57:46 -0500 (CDT)

Message number: 11 (previous: 10, next: 12 up: Index)

The reason Michael was measuring 1/2 the true FWHM is that the "rview"
command is squashing the frame by a factor 2 in each dimension.  This
is done to speed up the transfer time.  If you click on "cursor",
center the cursor on a star and press the left button, a full-size piece
of the original frame is displayed in another window.  If you repeat the
FWHM measurement on this frame, the correct value should be computed.

Steve Kent
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