YALO Telescope Observer's Report for 2001 May 10 Observer: David Gonzalez Observed all night from 00:35 to 09:46 UTC. Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 1.6 arcsec, Patchy Clouds, 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 first two targets (out of reach due to a late start) Differential magnitude Cen X-4 0.345 4u1543 1.35 XTE1550 7.27 (should the integ. time be increased?) Aql X-1 3.49 That's it, David ------------------------------ Submitted by David Gonzalez on 2001 May 11 [5:53:17]