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ENR CTIO Blanco 4-m 2014-01-10

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Date: 
Friday, January 10, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Alfredo Zenteno
Submitter Email: 
your@email.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Claudio Aguilera
Also Present: 
Philip Rooney, Claudio Bruderer, Kathy Romer / Alfredo Zenteno, Kathy Vivas (remote)
Problems: 

None.

Comments: 

First half was DES, second half was community time.

---------COMMENTS FROM DES OBSERVERS----------------

*Observing Team*
 
_DES Observers:_ Philip Rooney, Claudio Bruderer, Kathy Romer
_Telops:_  Hernan Tirado, Claudio Aguilera
_Remote Support:_ ---
 
*Observing Plan*
 
# standard bias and dome flat sequence
# evening standard stars
# run ObsTac queue
# middle/end of the night standard star 
# handover to community observers
# end of night calibrations 
 
*Conditions*
 
# weather in afternoon: 3pm (local): a lot of cirrus cloud cover (including over dome), covering more than 50% of the sky - otherwise blue
# weather after sunset: 9pm (local): all cirrus gone, some thicker clouds on horizon to East.
# weather during night: 10:30pm (local): clear, nothing on Rasicam.
# weather during night: 11:45pm (local): clear to eye, but some small spots on Rasicam even at high lattitude (Cirrus coming in?)
# Seeing conditions: very good, even beat the DIMM (Median 1.1 RMS 0.29)
# Wind conditions: 7.5mph (30m av) from SW at 8pm , 5.3mph (30 av) from NE at 9pm, 6.5mph (30m av) from NW at 10:30pm
# Humidity: 43%
 
*Accomplishments*
 
# Afternoon: zeros, dome flats (ugriz). 
# Evening: Standards (SDSSJ0000; SDSSJ0100; SDSSJ0320) 
# SN Exposures: 273066 - 273095 ; 273108 - 273110 ; 273108 - 273109
# Wide Survey: 273096 - 273107 ; 273096 - 273107
# Wide survey exposures: 
# Middle of night: Standards (SDSSJ1048)
 
*Problems tagged as Synopsis_Problem*
 
*Minor Problems and Relevant Information*
 
# Occlusion alarms: 273084, 6.25 degree delta, Zd = 49.85 degree
# We took a screen shot of some mysterious dots in S4 of a SN field - see eLog for image
 
*Notes for Data Management*
 

----------END OF COMMENTS FROM DES OBSERVERS----

* Some Problems *
At approx. 3:00 am Kathy realized that I forgot to press "configure" for the changes in Observer Console (like "observers" and "Proposal ID") to take place.  I put a' break' and when the exposure was finished I pressed "configure".  Unfortunaly, it seems that I did it while the recently obtained image was reading out, rendering SISPI unresponsive.  It took 30 minutes to get it back (finally we restarted SISPI with Hernan's help).  After that everything went smoothly again.

We had several automatic phone calls warning us about a problem with the nitrogen differential pressure.  Claudio took care of it.  Apparently it had no impact on the observation.
 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
0.75
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
2
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.60
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
3rd Quarter
Clouds: 
Clear
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
Program: 
Proposal: 
2012B-0001 / 2013B-0421
Target of Oportunity: 
No
Time Observed: 
7.0
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DES/Light Echos
Primary Investigator: 
Frieman / Rest
Email: 
romer@sussex.ac.uk
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-01-10 7.0 0.0 0.5 0.0 0.0 7.5