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ENR CTIO Blanco 4-m 2013-11-17

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Date: 
Sunday, November 17, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
David James
Submitter Email: 
djj@ctio.noao.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Claudio Aguilera
Also Present: 
Marisa March, Kevin Reil
Problems: 

None.

  1. Shutter box error – occurred four times – resolved by ICS shutter restart and/or reconfigure shutter role in sispi.
  2. ics1.ctio.noao.edu:8080 GUI problem – lost ICS (lower right) screen only. Unable to recover.
  3. Guider frequnetly lost guide stars due to cloud.
  4. Full moon illuminating clouds (we believe) caused saturation of SN X3-z band. Sequence aborted. Tried shorter test exposures of 45s – still had saturation problems. Had to stop observing for ~2 hours.
Comments: 

Observing Team

 

DES Observers: Kevin Reil, Marisa March, David James 
Telops: Claudio Aguilera, Hernando Tirado
Remote Support: –

Observing Plan

  1. Afternoon calibrations
  2. Tonight’s DES observations are preceded by DD Time: Prop-ID 2013B-0531: Satellites of Neptune.
  3. Evening standard stars
  4. ObsTac
  5. Morning standard stars
  6. Morning calibrations

Conditions

  1. Skies became cloudy ~40% by RASICAM at around 2300 CLST.
  2. Completely clouded out between 0035-0218 CLST.
  3. Seeing from the DIMM about 0.5-1.4 arc sec.

Accomplishments

  1. Afternoon calibrations (good)
  2. Director’s Discretionary Time: Prop ID 2013B-0531: Observations of Neptune’s satellites. (Non-DES)
  3. DES observing began at 2231 CLST
  4. Evening standards:

    1. SDSSJ2140-0000
    2. SDSSJ0100-0000
  5. ObsTac.

    1. ObsTac observing began at 2249 CLST
    2. SN C1 shallow field (griz) taken on SN deadman trigger.
    3. SN X3 z-band (Not deadman: SN Tactician) [FAILED due to saturation: Clouds & full moon]
    4. Wide survey primarily Y-band with occasional z-band. (moon up all night).
  6. Morning standards:

    1. SDSSJ1048-0000
    2. SDSSJ0958-0010
    3. SDSSJ0843-0000
  7. Morning calibrations (zeros only)
Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Seeing Value: 
0.80
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky : 
2
2nd Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
8
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
2
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Medium
Seeing Value: 
1.30
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
1
Program: 
Proposal: 
2012A-0001
Target of Oportunity: 
No
Time Observed: 
5.75
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
2.0
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Joshua Frieman
Email: 
freiman@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-11-17 5.75 0.0 0.0 2.0 0.0 7.75