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ENR CTIO Blanco 4-m 2017-09-12

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Date: 
Tuesday, September 12, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Richard Kron
Submitter Email: 
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Steve Kent
Problems: 

None.

Comments: 

Observing Team

DES Observers: Rich Kron and Steve Kent
Telops: Alberto Alvarez – Operator, Hernan Tirado – Obs. Support 
Remote Support:

Observing Plan

  1. standard bias and dome flat sequence
  2. evening standard stars
  3. run ObsTac queue
  4. end of night standard stars
  5. end of night calibrations

Conditions

  1. weather: fog at evening twilight, intermittent for several hours
  2. weather during night: persistent high humidity until 03:35 local
  3. weather during night: clear thereafter til morning
  4. Seeing conditions: Median: 1.45 arcsec, rms 0.25 arcsec
  5. Wind conditions: 5-20 mph
  6. Humidity: 86% at start; max 94%; later 45-60%

Accomplishments

Began with a few z and Y WF then switched to SN then back to WF

  1. Afternoon: zeroes, double flats (ugrizY)
  2. Evening: no standards
  3. Survey Exposures 677138-677146; 677165-677180
  4. SN exposures 677147-677158; 677160-677164 X3z, C3i
  5. End of night: standards (J0100,J0200,J0320)
  6. Wildlife report: none

 

Problems tagged as Synopsis_Problem

Minor Problems and Relevant Information
Two nights ago (MJD 58007) we observed X3z (exp 676413-676424), which
was provisionally assessed good. Assessments applied tonight flagged it
as bad (676414).

C3i was observed two nights ago and was presumed to be good. 
Assessments applied tonight flaggged it as bad (676430).

Also during the synchronization review we noticed that some of the SN exposur
es
from last night had quality set to accept=F. Our understanding was that
none of the SN exposures were to have had assessments declared in the table.
These were not applied.

apply_data_gui should display a concise object name and date to make review
of assessments easier.

Notes for Data Management

  1. none

 

Conditions: 
General Conditions
Temperature Max: 
2.00
Temperature Min: 
-2.00
Humidity Max: 
94
Humidity Min: 
45
Wind Speed Max: 
22.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Overcast
Precipitation: 
High Humidity
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
8
2nd Quarter
Clouds: 
Overcast
Precipitation: 
High Humidity
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
8
3rd Quarter
Clouds: 
Overcast
Precipitation: 
High Humidity
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Sky: 
8
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
2.75
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
7.25
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Joshua Frieman
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
2017-09-12 2.75 0.0 0.0 7.25 0.0 10