YALO Telescope Observer's Report for 2001 Jul 01

Observer: Juan Espinoza
Observed for most of the night from 03:25 to 10:47 UTC.
Conditions were Photometric most of the night.
Problems were encountered, see the summary for details.

Seeing and Weather:
   Beg: Overcast, Winds Calm
   Mid: Seeing 1.2 arcsec, Cirrus, Winds Calm, to clear sky
   End: Seeing 2.0 arcsec, Cirrus, Winds Light & Variable

Observing Summary:


Late start due to clouds.

Very variable weather/seeing tonight.  Program was slightly modified
in order to observe Aql X-1 twice.  One IR frame lost on V4641 due to crash.
47Tuc not completed.
EB2K005 and grs1915 imterrupted because telescope reached hard limits switches.

Yale magnitudes:

Cen X-1		0.5	Observed only in V band because of clouds (no guide star/near moon)
4u1543		1.34
xte1550		5.67 **?
Aql X-1		2.18
		2.0

That is all
cheers

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Submitted by Juan Espinoza on 2001 Jul 2 [6:54:03]