ENR CTIO Blanco 4-m 2014-01-25

Date:

Saturday, January 25, 2014

Telescope:

CTIO Blanco 4-m

Submitter:

Submitter Email:

tomasz.kacprzak.09@ucl.ac.uk

Observer Support:

Humberto Orrego

Night Assistant:

Claudio Aguilera

Also Present:

David Gerdes, Tomasz Kacprzak (first half), Ricardo Munoz (second half)

Problems:

23:18 local time, 4MAP system failed, we aborted exposure. 4MAP was restarted by Claudio and we continued normall around 23:27.

Comments:

*Observing Team*

_DES Observers:_ Tomek Kacprzak, David Gerdes

_Telops:_ Claudio Aguilera

_Remote Support:_ Humberto Orrego

*Observing Plan*

# standard bias and dome flat sequence

# evening standard stars

# run ObsTac queue

# middle-of-night standards

# handover to community observer (R. Munoz)

*Conditions*

# weather in afternoon: 4pm (local): clouds moving in

# weather after dinner: 7pm (local): clouds moving out

# weather at 10 deg twilight: 21:30 (local): clear, some clouds on E horizon

# weather summary: 2am (local): clear, 70% humidity

# Seeing conditions: Median:1.3" RMS: 0.14"

# Wind conditions: moderate (8-10mph)

*Accomplishments*

# Afternoon: zeros done 277714-277722 and 277798-277806, (ugrizY) dome flats done 277723-277797, checked all ok, u dropping as usual

# Winner of post sunset leisure activity:

# Evening: Standards 277811-277825

# SN survey exposures 277829-277858 (excluding 277851 and 277853), SN fields S1, X1, C3g,r, X3g,i

277852 test exposure after Claudio restarted 4MAP.

# Main survey exposures: 277859 - 277907

# Middle of night (end of half night):277908-277912

*Problems tagged as Synopsis_Problem*

23:18 local time, 4MAP system failed, aborted exposure 277851, stopped obstac.

Restarted obstac 23:27

*Minor Problems and Relevant Information*

# Occlusion alarms: None.

One 4MAP failure, cost about 15min.

*Notes for Data Management*

Exposures 277851 and 277853 were aborted and not delivered due to 4MAP problem.

That corresponds to i band SN-X3 4/6 and 5/6.

Conditions:

General Conditions

Comment:

None.

1st Quarter

Clouds:

Clear

Precipitation:

High Humidity

Wind:

Medium

Seeing Value:

1.29

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky :

2nd Quarter

Clouds:

Clear

Precipitation:

High Humidity

Wind:

Medium

Seeing Value:

1.30

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

3rd Quarter

Clouds:

Clear

Seeing Value:

0.00

Seeing Variability:

Seeing Source:

CTIO Seeing monitor

Sky:

4th Quarter

Clouds:

Clear

Seeing Value:

0.00

Seeing Variability:

Seeing Source:

CTIO Seeing monitor

Sky:

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Program:

Proposal:

2012B-0001

Target of Oportunity:

Time Observed:

3.5

Time Engineering:

0.0

Time lost technical:

0.25

Time lost weather:

0.0

Time lost other:

0.0

Description:

DES

Primary Investigator:

Frieman

Institution:

DES

Instrument:

CTIO 4m DECam

Organization:

NOAO

Total Program Time:

3.75

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Total Times	Time Observed	Time Engineering	Time lost technical	Time lost weather	Time lost other	Total Program Time
2014-01-25	3.5	0.0	0.25	0.0	0.0	3.75