Generator failed in the afternoon; fixed by the hard work of CTIO staff and we were up and running a bit after sunset - no observing time was lost. Two frames (430271 and 430292) did not get written to disk since two Image Builders failed. Ran all night with the remaining 3 without any problems. Hopefully these will be recovered ...? All environmental readouts were down - hopefully fixed by tomorrow night? SISPI kept complaining that the Alarm History and Interlock Viewer pages were unresponsive. Observer console had to be refreshed ~3 times through the night. TCS communication with SISPI failed at UT 06:36; after some fiddling - restarted SISPI at 06:53. Lost ~30 min at end of night. We tried to restart SISPI, but could not bring up any of the GUI windows using the DECam icon. Starting an observer console from a browser did not give us any functionality. Klaus realized that decal was down; Claudio rebooted; see e-mail notes. I took some test frames, so system seems to be working.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2015-04-07 | 10.0 | 0.0 | 0.5 | 0.0 | 0.0 | 10.5 |
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Good night; z-band seeing of 0.85 - 1.2 during the first half; 1.0-1.5-1.0 during the second half. Used only z-band tonight. Lost ~30 min at the end of the night.