[vsnet-campaign-nova 955] V2540 Oph CCD Observations - re-posted

[DWest61506@aol.com]

My original post to this list was bounced - not sure why, so I will repost the message.
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The observations below are of V2540 Oph unfiltered using TYC 6248 1077 1 and TYC 6248 794 1 as comparison stars.  The check star was TYC 6248 291 1.  The standard deviation of the check star was 0.011 magnitude.  The equipment used was a 0.2 m SCT + ST-9E CCD camera.  Program AVE was used to check for periodicity.  The observations show a linear slope of 0.64 mag/day with superimposed multiperiodic variations with periods of 0.031, 0.043, and 0.07 day.

Regards,
Doug West

JD                     CCD mag
2452487.5975 10.67
2452487.5989 10.68
2452487.6011 10.67
2452487.6033 10.68
2452487.6054 10.68
2452487.6076 10.69
2452487.6098 10.68
2452487.6119 10.69
2452487.6141 10.71
2452487.6163 10.70
2452487.6184 10.69
2452487.6214 10.70
2452487.6236 10.70
2452487.6258 10.66
2452487.6279 10.70
2452487.6301 10.69
2452487.6323 10.70
2452487.6344 10.66
2452487.6366 10.67
2452487.6388 10.68
2452487.6405 10.72
2452487.6427 10.69
2452487.6449 10.73
2452487.6470 10.70
2452487.6492 10.69
2452487.6514 10.71
2452487.6535 10.73
2452487.6557 10.72
2452487.6578 10.72
2452487.6587 10.70
2452487.6608 10.71
2452487.6630 10.70
2452487.6652 10.72
2452487.6673 10.70
2452487.6695 10.73
2452487.6717 10.74
2452487.6738 10.71
2452487.6760 10.70
2452487.6782 10.71
2452487.6803 10.72
2452487.6825 10.73
2452487.6847 10.72
2452487.6868 10.74
2452487.6890 10.74
2452487.6912 10.72
2452487.6933 10.72
2452487.6955 10.74
2452487.6977 10.72
2452487.6998 10.73
2452487.7020 10.74
2452487.7042 10.73
2452487.7063 10.73
2452487.7085 10.74
2452487.7106 10.76
2452487.7128 10.76
2452487.7150 10.74
2452487.7172 10.73
2452487.7193 10.75
2452487.7215 10.75

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