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ENR CTIO Blanco 4-m 2015-10-07

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Date: 
Wednesday, October 7, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Tim Abbott
Submitter Email: 
Observer Support: 
Manuel Hernandez
Night Assistant: 
Rodrigo Hernandez
Also Present: 
Cristina Furlanetto, Suk Sien Tie
Problems: 

None.

Comments: 

*Observing Team*

_DES Observers:_ Cristina Furlanetto, Suk Sien Tie, Tim Abbott
_Telops:_ Rodrigo Hernandez, Manuel Hernandez
_Remote Support:_ ---

*Observing Plan*

# standard bias and dome flat sequence
# evening standard stars 
# run ObsTac queue
# end of night standards

*Conditions*

# weather in afternoon: 4pm (local): Some thinnish clouds, fading out towards the east
# weather after sunset: 8pm (local):Mostly clear, some light cirrus to the east 
# weather at 1am local: cloud to southwest and east.  Some doubt about general transparency which might be relieved by a better RASICAM flat field.  That said, there is definitely something passing overhead.  Seeing sucks, 2"+
# weather at 3:30am local: I cannot convince myself that the apparent periods of overcast being reported by RASICAM are real.  They could easily be artefacts of poor flat fielding and outside it looks pretty clear.
# Small earthquake during exp 482875
# 04:40: seeing somewhat improved, 1"-1.5" for the last hour or so. Clouds rolling in.

*Accomplishments*

# Afternoon: flats and biases, (ugrizYVR) dome flats done, flatCheck ok
# Evening: Beginning of night standards are SDSSJ2300-0000, SDSSJ2140-0000 , and E8-A. 
# Survey Exposures 482681- in grizY bands including SN fields: X2 (griz), C1 (griz), S2 (griz), S1 (griz) 
# aTmCam and GPS Monitor Checked. 
# ObsTac stopped at 03:00 to do ToO (GW) program, starting with img 482835 (G184098-6-UTC-2015-9-20-6/29/00.json) to exp 482849.
# ObsTac restarted at exp 482850
# ObsTac stopped at 03:40 to do ToO (GW) program, starting with img 482856 
(G184098-7-UTC-2015-9-20-6/59/00.json) to exp 470.
# Exp 482871 starts G184098-8-UTC-2015-9-20-7/29/00.json to exp 482885.
# Exp 482886 starts G184098-9-UTC-2015-9-20-7/59/00.json to exp 482900.
# Exp 482901 starts G184098-10-UTC-2015-9-20-8/29/00.json to exp 482924.
# Exp 482925 starts standards
# Morning standards: SDSSJ0200-0000 (airmass 1.9), SDSSJ0320-0000 (airmass 1.4 and C26202/HST (airmass 1.1)
# End of night zeroes

*Problems tagged as Synopsis_Problem*
# None

*Minor Problems and Irrelevant Information*
#

*Notes for Data Management*

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Medium
Seeing Value: 
2.50
Seeing Variability: 
0.8
Seeing Source: 
The Telescope I used
Sky : 
1
2nd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
2.00
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
3
4th Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
4
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
yes
Time Observed: 
10.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DES
Primary Investigator: 
Josh Frieman
Institution: 
DES
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
2015-10-07 10.0 0.0 0.0 0.0 0.0 10