MDM Observatory 2.4m Telescope Observer's Report for 2001 Apr 13

Observer(s): David Helfand and Ali Kinkhabwala
Institution(s): Columbia

Instrument: 8K camera

Worked for 10 hours (all night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1.1 arcsec, Cirrus, Winds Light & Variable
   Mid: Seeing 0.9 arcsec, Clear, Winds Light & Variable
   End: Seeing 1.2 arcsec, Clear, Winds Light & Variable

Observing Summary:

The sky was claer all night (excepting early evening cirrus to the East,
although until the last couple of hours (AFTER the moon rose)
there didn't seem to be enough stars out there, so I think there must have been
at least a light haze.
Seeing ranged from 1.2  at beginning and end to 0.9  or slightly
better for long periods in the middle.

Everything worked smoothly. The only irritation is that the
8K computer does not have IRAF (which reduces ones efficiency
because of having to ftp files to the other machines), and that
the program it does have to display the 8 chips puts them
at random orientations to each other, making centering
up on a star slightly less easy.

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Submitted on 2001 Apr 14 [14:12:24]