Failure of mirror bag system causes jumps in tracking, leding to dramatic loss of guiding. Huge excrusions in the DECam guide box;
trails and multiple images on frames. Began as subtle effect with intermittent loss of guiding; progressed to much worse.
Night crew was able to recover but we were advised after 3rd occurrence that the telescope would have to be safed for the night;
this did nappen.
Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
---|---|---|---|---|---|---|
2013-06-04 | 8.0 | 0.0 | 3.5 | 0.0 | 0.0 | 11.5 |
Links
[1] mailto:rmr@astro.ucla.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/929/delete?destination=print/content/enr-ctio-blanco-4-m-2013-06-04
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/929/edit?destination=print/content/enr-ctio-blanco-4-m-2013-06-04
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/3821?destination=print/content/enr-ctio-blanco-4-m-2013-06-04
Guider problem as described above. Occasional failure to set up guide stars in some fields.