You are here

CTIO Home

ENR CTIO Blanco 4-m 2014-02-03

Primary tabs

Date: 
Monday, February 3, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Stephen Kent (1st half) Sara Barber (2nd half)
Submitter Email: 
skent@fnal.gov
Observer Support: 
Hernan Tirado
Night Assistant: 
None
Also Present: 
Alex Drlica-Wagner, David James, Claudia Belardi
Problems: 

One shutter error, smooth recovery.
2 noncritical occlusion alarms.

2nd Half:
no problems

Comments: 

  Observing Team

DES Observers: Steve Kent, Alex Drlica-Wagner
Telops: Hernan Tirada
Remote Support: Klaus Honscheid

Observing Plan

Half-night plan

  1. standard bias and dome flat sequence
  2. evening standard stars
  3. TOO Death Asteroid – Save Humanity
  4. run ObsTac queue
  5. middle of the night standard star
  6. handover to community observers

 

Conditions

  1. weather after dinner: 7pm (local): Clear
  2. weather during night: 22:00 pm (local): Clear; weak “ring of fire” pink glow around most of horizon
  3. weather during night: 12am (local): Ring of fire decreasing
  4. Seeing conditions: 0.8-1.1 arcsec, depending on band and airmass
  5. Wind conditions: 5 mph
  6. Humidity: 25

Accomplishments

  1. Afternoon: zeros (280976-280984 dome flats (ugriz) (280985-281059)
  2. Evening: Standards:

    • E4-A
    • SDSSJ0200
    • SDSSJ0320
  3. NEO exposure under prop-id 2014A-0640 (281091-281095)
  4. Survey Exposures: 81 total
  5. SN exposures

    • SN-C2
    • SN-X3
  6. Middle of night:

    • Standard SDSSJ1227
    • Nightly Defocus

Problems tagged as Synopsis_Problem

Minor Problems and Relevant Information

  1. Shutter error on 1st standard; recovery went smooth.
  2. Misreading of DEC for NEO led to pointing at wrong position for 3 exposures.
  3. 2 Occlusion alarms (none significant)

 

Notes for Data Management

  1. Ignore exposures 280960-280972 – we restarted flats
  2. Ignore exposures 281088-281095 (NEO – 1st 3 have wrong pointing as well)
  3. Ignore exposures 281194-281195 (defocus)

-------------------------- END DES -------------

2nd Half:

Ellipticity was high (~0.2) towards the end of the night, although telescope was moving toward ever higher ~2 airmass.

 
 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.85
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
DES
Target of Oportunity: 
No
Time Observed: 
4.5
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: 
frieman@fnal.gov
Institution: 
DES
Instrument: 
CTIO 4m DECam
Organization: 
N/A
Total Program Time: 
4.5
Proposal: 
2014A-0073
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
PAW (Planets Around White Dwarfs)
Primary Investigator: 
Mukremin Kilic
Email: 
kilic@ou.edu
Institution: 
University of Oklahoma
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-02-03 8.5 0.0 0.0 0.0 0.0 8.5