YALO Telescope Observer's Report for 2001 May 18

Observer: Juan Espinoza
Observed for most of the night from 03:11 to 10:34 UTC.
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Overcast, Winds Light & Variable
   Mid: Seeing 1.4 arcsec, Cirrus, Winds Light & Variable
   End: Seeing 1.2 arcsec, Cirrus, Winds Light & Variable

Observing Summary:


Hi,

The only problem found on tonight's program, other than clouds, was the great offset
for Portugal target  SN2001bb.  The SN is dangerously close the edge on IR chip.  
Also, I am not sure if this could be true, but I believe that exposure times on IR
are extremely long causing saturation.

Yale magnitudes:

Cen X-4		0.25
xte1550		6.88
4u1543		1.35

cheerios!
juan

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Submitted by Juan Espinoza on 2001 May 19 [6:33:34]