MDM Observatory 1.3m Telescope Observer's Report for 2001 Jun 07

Observer(s): Jules Halpern
Institution(s): Columbia U.

Instrument: Echelle CCD Direct

Worked for 9 hours (all night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Clear, Winds Light & Variable
   Mid: Seeing 1.6 arcsec, Clear, Winds Light & Variable
   End: Seeing 1.5 arcsec, Clear, Winds Light & Variable

Observing Summary:

Did an all-sky test of the collimation by taking out-of-focus
images in various directions.  Observed bright stars in nine
directions with focus 500 units out, then repeated with focus
500 units in. Some examples are posted in control room.
Collimation looks good in all directions.  Some evidence for
sagging in extreme positions, but probably not too bad.
Images available on request.

Other observations went well.   

------------------------------

Submitted on 2001 Jun 8 [4:39:20]