ENR CTIO Blanco 4-m 2012-11-07
Date:
Wednesday, November 7, 2012
Telescope:
CTIO Blanco 4-m
Submitter:
Blum
Observer Support:
Mauricio Rojas
Night Assistant:
Claudio Aguilera
Also Present:
D Norman, C Kaleida, A Saha, R Blum
Problems:
DECam. System worked well. A new pointing map was installed which greatly improved pointing accuracy. However E-W tracking errors returned. These seem to be much worse in the North. At -5 deg Declination, the excursions on the guider strip chart were frequent, regular and up to +/- 2 arcsec. Corresponding images were indeed elongated E-W. The behavior got worse as the telescope rose from the E toward the meridian. Behavior improved at or near zenith and then much improved at -75 deg Declination where excursions seemed random and much smaller.
Conditions:
Quarters
Program:
Proposal:
DECam SV
Target of Oportunity:
No
Time Observed:
3.5
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.0
Time lost other:
0.0
Description:
Community SV time
Primary Investigator:
D Norman
Email:
Institution:
CTIO
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
3.5
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2012-11-07 | 3.5 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 |
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