YALO Telescope Observer's Report for 2001 Apr 26 Observer: David Gonzalez Observed all night from 22:39 to 10:21 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 1.4 arcsec, Clear, Winds Calm Observing Summary: Hello, Programme fully accomplished save for the last two targets. 360989B, 366541B did not have a guide starand were replaced byt alternative targets. Differential magnitude for, Cen X-4 0.28 4u1543 1.31 XTE1550 7.57 That's it, David ------------------------------ Submitted by David Gonzalez on 2001 Apr 27 [6:24:35]