YALO Telescope Observer's Report for 2001 Apr 25 Observer: David Gonzalez Observed all night from 22:57 to 10:25 UTC. Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 2.0 arcsec, Clear, Winds Calm Mid: Seeing 1.6 arcsec, Clear, Winds Calm End: Seeing 1.4 arcsec, Clear, Winds Calm Observing Summary: Hello, Programme fully accomplished without problems. (Aql was not observed for lack of time). 329778B, 331255C, 337419B did not have a guide star and so were replaced by targets from the alternative list. Again, the seeing was variable, particularly in the first two thirds of the night. Differential magnitude of, Cen X-4 0.41 4u1543 1.34 XTE1550 6.77 That's it, David ------------------------------ Submitted by David Gonzalez on 2001 Apr 26 [6:32:08]