YALO Telescope Observer's Report for 2001 Aug 20 Observer: David Gonzalez Observed all night from 23:10 to 09:52 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 1.6 arcsec, Clear, Winds Calm End: Seeing 1.4 arcsec, Clear, Winds Calm Observing Summary: Hello, Programme fully accomplished. Differential magnitudes of, 4u1543 1.3 Cen X-4 0.5 XTE1550 7.26 Aql X-1 3.45 See you next week, David ------------------------------ Submitted by David Gonzalez on 2001 Aug 21 [6:00:12]