I uploaded a another light curve (from JD 2451634.7) to http://vsnet.geocities.com/lcoo/xte1118.htm Also there is a phase diagram for 0.17 days which fits the sinusoidal variation at an amplitude of ~0.08 magnitude. ===== Regards, Lew === Try Lew's instant automatic observation plotter. Copy a list of observations into Autoplot.xls and the observations are automatically plotted. Autoplot.xls (an Excel spreadsheet) is freeware. http://vsnet.geocities.com/lcoo/autoplot.htm __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com