YALO Nightly Observing Report for 1999 Jul 21

Observer: David Gonzalez
Observed all night from 22:51 to 8:41 UTC.
Conditions were Mixed 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 1.4 arcsec, Clear, Winds Calm

Observing Summary:

Programme succesfully accomplished. Some thin cirri that did not present much problem.
Differential magnitude of Aql X-1 V=1.05 R=1.86.
You will notice an error in the dome flats (domei and domev), I've already corrected it.
Rick, the Obspar of GRO1655 has y29901 as observer, while the programme states it as y29911. Do you want me to edit it?


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Submitted by David Gonzalez on 1999 Jul 22 [5:10:57]