Because of uncertainty in the Mexico Telescope's technical status, we are presently looking for another participant on the North American continent. It looks likely that this will be the Fan Mountain Observatory in Virginia, which is in a different weather pattern than Mt Hopkins. Because full moon occurs at the beginning of the monitoring period, shorter wavelengths are not being considered. This might mean that we want any on-chip binning option switched off. We are currently reducing archival Mount Hopkins images and beginning to re-reduce images from Apach Point Observatory.
Preliminary comparison indicates no systematic effects between the results for the two telescopes.
We are continuing these studies to ensure robust software operation at the time QUOC data arrives. Here we compare the time delayed data for 6 consecutive nights of intensive observing with a single telescope. The results seem to show clean evidence of brightness fluctuations on time scales of hours, and we derive a time delay of 417.3 days. Because the data do not actually overlap for this time delay, this result does not prove the existence of microlensing, but close inspection of the data record for day 5.8 is suggestive.