Date:
Saturday, October 3, 2015
Telescope:
CTIO Blanco 4-m
Submitter:
Cristina Furlanetto
Submitter Email:
Observer Support:
Hernan Tirado
Night Assistant:
Rodrigo Hernandez
Problems:
None.
Program:
Proposal:
2012B-0001
Target of Oportunity:
No
Time Observed:
9.5
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.5
Time lost other:
0.0
Description:
Dark Energy Survey
Primary Investigator:
Josh Frieman
Email:
Institution:
Fermilab
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
10
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2015-10-03 | 9.5 | 0.0 | 0.0 | 0.5 | 0.0 | 10 |
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*Observing Team*
_DES Observers:_ Cristina Furlanetto, Suk Sien Tie, Brian Nord
_Telops:_ Hernan Tirado, Rodrigo Hernandez
_Remote Support:_ ---
*Observing Plan*
# standard bias and dome flat sequence
# evening standard stars
# run ObsTac queue
# end of night standards
# defocus_nightly
*Conditions*
# weather in afternoon: 4pm (local): Cloudy with ~80% cloud cover
# weather after sunset: 9pm (local): Some clouds near the horizon in all directions.
# Strong winds ~40mph around 11pm (local).
# weather at 1am (local): some thick clouds near the horizon on the west. Still strong winds.
# weather at 4am (local): thin clouds near the horizon in all directions. Low winds. Side louvers opened.
*Accomplishments*
# Afternoon: flats and biases, (ugrizYVR) dome flats done, flatCheck ok
# Evening: Beginning of night standards are E8-A (airmass 1.0) and SDSSJ2300-0000 (airmass 1.6).
# aTmCam and GPS Monitor checked.
# ObsTac completed.
# Survey Exposures 481373-481602 in grizY bands, mostly wide fields. Also includes SN fields: X2 (griz), C3 (z), S1 (griz), S2 (griz).
# Morning standards: SDSSJ0200-0000 (airmass 1.8), SDSSJ0320-0000 (airmass 1.3), C26202/HST (airmass 1.1).
# Run defocus_nightly script.
*Problems tagged as Synopsis_Problem*
# Interlock break at 21:09 CLT (right before we started taking data) because we paused the queue and the exposure, so that the TelOp could put on the windscreen.
*Minor Problems and Relevant Information*
# Rasicam is still unoperational.
# Due to clouds, telescope opened at 20:35 CLT.
*Notes for Data Management*
# Exposure 481372 skiped and replaced by 481373. This was because we paused the queue and the exposure, so that the TelOp could put on the windscreen. This caused an interlock break and then we reconfigured and everything proceeded normally.
# RM forgot to do data declaration before observing, so paused ObsTac, cleared the queue, apply data declaration and enable ObsTac again. Lost ~2min of observing.