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ENR CTIO Blanco 4-m 2017-09-13

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Date: 
Wednesday, September 13, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Richard Kron
Submitter Email: 
rich@oddjob.uchicago.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Steve Kent
Problems: 

Please take a set of dome flat calibrations after the engineering work in the morning.  We were not able to obtain flats in the evening of September 13.

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 zeros

Conditions

  1. weather: fog at evening twilight, intermittent
  2. weather during night: humidity started to decline after 21:00 local
  3. weather during night: photometric thereafter
  4. Seeing conditions: Median: 1.0 arcsec, rms 0.15 arcsec
  5. Wind conditions: 5-15 mph
  6. Humidity: 65% at start of observing

Accomplishments

Began with WF g, r, i then SN then back to WF r,i,z

  1. Afternoon: no flats or zeros
  2. Evening: no standards
  3. Survey exposures 677213-677306; 677343-677409
  4. SN exposures X2 677308-677310; X3g 677312-677314; X3r 677316-677318
  5. SN exposures S2 677320-677324; S1 677326-677330; C3z 677332-677342
  6. End of night: standards (J0100,J0200,J0320)
  7. End of night: zeros
  8. Wildlife report: none

 

Problems tagged as Synopsis_Problem
see entry 238848

Minor Problems and Relevant Information
An evening storm was forecast and the telescope was protected
under a tarp —> no afternoon flats, no evening standards.

If the DM asessment is t,t and the Accept? column is not checked,
apply_data_gui appears to change the status to t,f instead of doing
nothing. This appears to be a bug, either in the code or in the
documentation.

Notes for Data Management
No flats for tonight: weather prevented evening flats, and engineering
will prevent morning flats. Request is in to obtain a set of flats
in the middle of the day (Sept 14).
Conditions: 
General Conditions
Temperature Max: 
4.50
Temperature Min: 
1.50
Humidity Max: 
70
Humidity Min: 
38
Wind Speed Max: 
20.00
Wind Speed Min: 
3.00
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Precipitation: 
High Humidity
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Sky : 
7
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
8.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
1.75
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Joshua Frieman
Email: 
frieman@fnal.gov
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
2017-09-13 8.25 0.0 0.0 1.75 0.0 10