YALO Nightly Observing Report for 1999 Sep 17

Observer: David Gonzalez
Observed all night from 23:14 to 10:05 UTC.
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1.2 arcsec, Clear, Winds Calm
   Mid: Seeing 1.8 arcsec, Clear, Winds Calm
   End: Seeing 1.6 arcsec, Clear, Winds Calm

Observing Summary:

Charles, N990624 has two sets of coordinates. I named the second one as N990624**.
Also, N990821 was out of reach.
Differential magnitude of Aql X-1:
R=2.275
V=0.735

regards,

David


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Submitted by David Gonzalez on 1999 Sep 18 [6:10:36]