YALO Nightly Observing Report for 1999 Jul 22

Observer: David Gonzalez
Observed all night from 22:53 to 9:00 UTC.
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1.4 arcsec, Clear, Winds Calm
   Mid: Seeing 1.4 arcsec, Clear, Winds Calm
   End: Seeing 1.8 arcsec, Clear, Winds Calm

Observing Summary:

Programme 100% succesfully accomplished.
Differential magnitude of Aql X-1:
R= 1.9
V= 1.08
No problems at all

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Submitted by David Gonzalez on 1999 Jul 23 [14:26:54]