Date: Fri, 21 Dec 2007 08:36:37 -0600 (CST)
From: Stephen Kent
Subject: Re: 2.5m obslog 20071220 (MJD 54455)
> ---=== OBSERVING SUMMARY ===---
>
>
> We got some signal with cartridges
> 2  pl.2850
> 5  2878
> 7  2639
> 3  1876
> 6  1877
> 8  2854
> No one got formal signal more than 2 in any spectrograph in a single exposure.
> Because of it, we declared #5 and #3 as BAD since they are "chunk".
> Who can clear criteria for chunk plates in the Moon time? Does it makes sense
> to observe them with the Moon at all?
The last time we discussed this, I recall that when the plate database
shows the moon being more than 1 unit of intensity for a plate and the
color in the display changes from dark blue to light blue, that is the
limit for the amount of moon we want for the chunk plates.
Steve