Guiding and focusing issues throughout night, sometimes caused by clouds. Some images are out of focus, including those bewteen 769-779.
Guiding issues and format failure - occurred twice in calibrations and once during the night. Origin is not known. Calibrations were not finished because of this.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2016-10-18 | 4.5 | 0.0 | 0.25 | 4.0 | 0.0 | 8.75 |
Links
[1] mailto:frieman@fnal.gov
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3467/delete?destination=print/content/enr-ctio-blanco-4-m-2016-10-18
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3467/edit?destination=print/content/enr-ctio-blanco-4-m-2016-10-18
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/10709?destination=print/content/enr-ctio-blanco-4-m-2016-10-18
Tonight was a challenging night. The start was ok, with not great seeing around 1.6-2 arcsec. Then we had an issue with the guiding and focus which was giving bad out of focus imaging for many frames. Things then calmed down and we were able to get useable data for the SN and some main fields. At 12:45 the telescope was closed due to heavy clouds. We then reopened the telescope at 4:45 and started observing the DES SN fields again and then back to the main fields. However, the seeing was bad from around 2-2.3''.