Date:
Thursday, September 10, 2015
Telescope:
CTIO Blanco 4-m
Submitter:
James Lasker
Submitter Email:
Observer Support:
Manuel Hernandez
Night Assistant:
Alberto Alvarez
Problems:
# New Environment page is picking up the DIMM, but old environment page and the Telemetry viewer don't get DIMM data
Program:
Proposal:
2012B-0001
Target of Oportunity:
No
Time Observed:
5.0
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.0
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:
5
Proposal:
2015B-0601
Target of Oportunity:
No
Time Observed:
5.0
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.0
Time lost other:
0.0
Description:
DECam Search for the Elusive Stellar Counterpart of the Magellanic Stream
Primary Investigator:
J. Chaname
Email:
Institution:
Pontificia Universidad Catolica de Chile
Instrument:
CTIO 4m DECam
Organization:
Chile
Total Program Time:
5
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2015-09-10 | 10.0 | 0.0 | 0.0 | 0.0 | 0.0 | 10 |
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*Observing Team*
_DES Observers:_ Ross Cawthon, James Lasker, Josh Frieman, David James
_Telops:_ Manuel Hernandez, Alberto Alvarez
_Remote Support:_ ---
*Observing Plan*
#Standard Bias and Dome Flat sequence
# evening Standard stars
# Start ObsTac (Expecting gri band until SN fields up)
# Hand off to Community Observers at 11:15 CLT
# Take over from Community Observers at 4:15 CLT
# Restart ObsTac
# morning standards
*Conditions*
# Afternoon: Mostly cloudy, but forecast shows strong likelihood of complete clearance
# Earliest part of night had poor seeing as did most of the second half.
# Rest of night conditions pretty good, seeing around 1 arcsec
# Some clouds popped up for the SN-S2 observations
*Accomplishments*
# Afternoon: zeros done, (ugrizYVR) dome flats done, checked, OK, GPS Monitor Skyplot checked
# Evening standards SDSSJ1442-0005, E6-A, E8-A
# aTmCam checked.
# Early night : Obstac started, Tried Y band then realized seeing(~1") is good enough to do some g,r,i sequences
# Went outside, saw stars.
# Around 22:00 CLT, switched to z, Y. Possibly due to a few poor seeing exposures in g and r. Seeing does degrade slightly to ~1.2"
# Wind Screen raised to 45 degrees at 22:30 CLT. Windspeed has hovered around 13 mph
# Around 22:30 CLT Obstac returns to g, r, i sequences. Seeing returns to ~1"
# Handoff to Community Observers at 23:15 CLT
# Takeover from Community Observers at 4:15 CLT
# Windscreen was lowered for Community observer standards. Raised several exposures after takeover.
# SN-C1, C2, C3-r, S1, S2, and X-1 taken, poor seeing for all, problems for S2 (see Notes to DM)
# Return to Wide field z and Y bands for finale
#Morning standards SDSSJ0100-0000, SDSSJ0200-0000, SDSSJ0320-0000
*Minor Problems and Relevant Information*
# Large offsets from start of night pointing. (RA: -51.0, Dec: -3.9). Applied offsets and reran to get smaller offsets (RA: 3.9, Dec: 3.9)
*Notes for Data Management*
# SN-S2 g and r band (exposures 473603-4) are fairly cloudy and have large PSF.
# SN-C2 g and r band (exposures 473619-20) have incredibly poor seeing