ENR CTIO Blanco 4-m 2013-01-05
Date:
Saturday, January 5, 2013
Telescope:
CTIO Blanco 4-m
Submitter:
David James
Submitter Email:
djj [at] ctio [dot] noao [dot] edu
Observer Support:
Mauricio Rojas
Night Assistant:
Alberto Alvarez
Also Present:
Lori Allen, Cesar Fuentes, Kevin Reil, Lyndsay Old, Ricardo Ogado
Problems:
None.
Conditions:
Quarters
Program:
Proposal:
2012B-0003 and 2012B-0569
Target of Oportunity:
No
Time Observed:
8.0
Time Engineering:
0.0
Time lost technical:
0.5
Time lost weather:
0.0
Time lost other:
0.0
Description:
DES exSV and NEO pilot program
Primary Investigator:
Josh Frieman and Lori Allen
Institution:
Fermilab
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
8.5
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2013-01-05 | 8.0 | 0.0 | 0.5 | 0.0 | 0.0 | 8.5 |
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Flats obtained prior to evening twilight. During nautical twilight, problems with 4map system (M1 active optics air system system) resulted in a late start by about 20-minutes or so, and prevented observation of west-commish.
DES Supernova fields X3_z, C3_r and C3_z were observed to fruition. We took one standard at start of night and two standards at the end.
With a total of three standards, three deep field sequences and one 90 second manual guider test we turned the telescope over to the NEO team late (~10 minutes). Kevin R. (DES consortium) feels strongly that we the DES *must* avoid this scenario in future.
DJJ comment: well, while a late turnover was undesirable, our DES team did not deliberately start extra exposures to force an over-run. The manual guider tests are necessary for improving the sysytem for the good of all (including NOAO community users).
While it was my own NOAO community program tonight (with Lori Allen [PI]) that lost that 10-minutes, it is not the end of the world. Thanks for being sensitive to this issue Kevin.
The late turnover was followed by a SISPI hang-up. Very unfortunate, but such is life.
Community time went very well mostly, apart from about 25-minutes lost for the SISPI crash.
End of evening biases and dome flats in all filters were obtained (under propID: 2012B-9999).
DJJ