There seems to be a lot of stray light in COSMOS. It appears that the cass rotator is missing some covers. We will start work on identifying light leaks into the system tomorrow.
ALso, we had some trouble with the guider. The guide stars seem to drift out of the guide box when we attempted to observer at a rotator angle of zeor deg. Guiding was stable when we observed at a rotator angle of 270 deg.
We tested the software for rotating. The rotator control on the telescope operator TCS display only accepts rotation values as integers. The rotator control on the engineering workstation, the SMCGUI vi allows one to put in real values.
We also noticed that the limits of the guide probe on the operator's TCS GUI were different from the guide probe limits on the SMCGUI vi.
We also note that COSMOS does not appear in the drop down menu for reporting the instrument used when submitting night reports.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2014-07-10 | 0.0 | 11.25 | 0.0 | 0.0 | 0.0 | 11.25 |
Printer-friendly version
During the morning Roberto Tighe and Manuel MArtinez reinstalled the old RC Spec calibration unit in the Cass cage. This unit provides better calibration data than the Hydra calibration system. We took hollow cathode (CuHeAr) and penray (HgAr) spectra with both units for identicle exposure times. The RC Spec unit is the preferred option.