No significant problems to report. At about 05:00 UT, it was noted that ISPI was warming up so we halted observing so that telescope staff could fill up the liquid nitrogen. This took about 20 minutes total. Around 09:00 UT, some communication errors occurred that "lost" 2 10-second exposures, twice. Details described below. Total time lost here: 15 minutes.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2014-04-18 | 9.75 | 0.0 | 0.25 | 0.0 | 0.5 | 10.5 |
Links
[1] mailto:xdai@ou.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/1499/delete?destination=print/content/enr-ctio-blanco-4-m-2014-04-18
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/1499/edit?destination=print/content/enr-ctio-blanco-4-m-2014-04-18
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/5455?destination=print/content/enr-ctio-blanco-4-m-2014-04-18
Around 09:00 UT, got the following errors (twice) that resulted in 2 lost images per incident (luckily they were only 10 second exposures). The errors were 'digitze(0): Exposure ##: can't assign IB', 'Interlock SISPI (OCS) is now broken', and 'Interlock DECAM (SISPI) is now broken'. Also the light for Interlock turned red. We went to the system control tab and pressed configure. This seemed to fix the problem. The incidents were about 5 minutes apart. Total time lost from this issue was about 10 minutes.