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ENR CTIO Blanco 4-m 2014-08-18

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Date: 
Monday, August 18, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Bob Blum
Submitter Email: 
rblum@noao.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Problems: 

DIMM not working.

Comments: 

DECaLS: Myers, Blum (Nord last 5 nights).

Great night cruising at N declinations: g-band at secz 1.9 ~1.13"!
Weather: NONE.
DES Team: Kron, Kent
On Deck: Leighton, Nantais
See low dome and M1 after 0245 UT, delta is < 2C and tracking eachother well. Great images even in g at high airmass.

Great night, great run. Gracias a todos. Execlente apoyo como siempre.

Observing Team

DES Observers: Stephen Kent, Richard Kron
Telops: Hernan Tirado, Alberto Alvarez
Remote Support:

Observing Plan

  1. 2nd half-night observing plan
  2. Handoff from 1st half observers at 04:46
  3. use 1st half standard bias and dome flat sequence
  4. two mid-point standard stars
  5. run ObsTac queue
  6. three morning standard stars
  7. morning bias

Conditions

  1. Photometric all night.
  2. Start of night – no weather
  3. Later – wind picks up to 25 mph, yet seeing is 0.78” in z band
  4. Overall seeing is acceptable to superb

Accomplishments

  1. afternoon bias and flats; flats look good
  2. Rolling handoff from 1st half observers extending from 04:27 to 04:46 UT
  3. midpoint standards

    • SDSSJ2140
    • SDSSJ0100
  4. Wide survey g,r,i,z,Y exposures
  5. Supernova

    • C3 g
  6. morning standards

    • SDSSJ0320
    • SDSSJ0100
    • SDSSJ0000
  • Exposure 349835 is record best DES image in g band (0.81”)
  • Exposure 349875 is record best DES image in r band (0.73”)
  • Exposure 349874 is record best DES image in i band (0.73”)
  • Exposure 349864 is record best DES image in z band (0.70”)

Problems

None

Notes for data management

  1. Afternoon flats and biases 349476-349584 are from prop-id 2014B-0404

Other

  1. DIMM not working tonight
Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.85
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECalS
Primary Investigator: 
Schlegel
Email: 
djschlegel@lbnl.gov
Institution: 
NOAO
Instrument: 
CTIO 4m DECam
Total Program Time: 
5.25
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DES
Primary Investigator: 
Frieman
Email: 
freiman@fnal.gov
Institution: 
NOAO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-08-18 10.5 0.0 0.0 0.0 0.0 10.5