ENR CTIO Blanco 4-m 2014-01-20

Date:

Monday, January 20, 2014

Telescope:

CTIO Blanco 4-m

Submitter:

Peter Nugent

Submitter Email:

penugent@lbl.gov

Observer Support:

Humberto Orrego

Night Assistant:

Alberto Alvarez

Also Present:

Claudio Bruderer, Kathy Vivas (second half)

Problems:

Some SISPI issues having problems with the interlock during afternoon calibrations. Restarted it and everything was fine.

During the night recorded 2 Occlusion Alarms > 15 deg.

******************

No problems in the second part of the night

Comments:

*Observing Team*

_DES Observers:_ Claudio Bruderer, Peter Nugent

_Telops:_ Alberto Alvarez

_Remote Support:_ Humberto Orrego

*Observing Plan*

# standard bias and dome flat sequence

# evening standard stars

# run ObsTac queue

# Standards carried out

# handover to 2nd half

*Conditions*

# weather in afternoon: 4pm (local): Cirrus spread all over, clouds on horizon

# weather after dinner: 7pm (local): Thin Cirrus everywhere.

# weather at 10 deg twilight: 21:30 (local): Clear

# weather summary: 2am (local):

# Seeing conditions: Median: 0.89 RMS: 0.16

# Wind conditions: none at start of the night, then increasing from the NE, 10-12 mph peak, closed louvers at UT 04:20

*Accomplishments*

# Afternoon: zeros done 276233-276243 and 276319-276327, (ugriz) dome flats done 276244-276318, checked all ok, but u was lower than expected

# Winner of post sunset leisure activity: A fox making his way into the dining room...

# Evening: Standards 276333-276347

# Survey Exposures 276350-276461

# Middle of night (end of half night): Standards 276462-276466

*Problems tagged as Synopsis_Problem*

None.

*Minor Problems and Relevant Information*

# Some TCSInterface issuses during afternoon calibrations, restarted everything with image 276233 and ran from there

# Occlusion alarms: 5 alarms during the night, 2 severe.

*Notes for Data Management*

# Image 276434 is clearly a bad image (looks like streaking) and has to be re-added to ObsTac. Image 276235 and 276235 had an Occlusion Alarm of 17 and 22 degrees respctively.

**************

No comments for the second part of the night. Everything worked well

Conditions:

General Conditions

Comment:

None.

1st Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

0.90

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky :

2nd Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

0.85

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

3rd Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

0.80

Seeing Variability:

Seeing Source:

The Telescope I used

Sky:

4th Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

1.00

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

Delete
Edit

Program:

Proposal:

2012B-0001

Target of Oportunity:

Time Observed:

3.5

Time Engineering:

0.0

Time lost technical:

0.0

Time lost weather:

0.0

Time lost other:

0.0

Description:

DES

Primary Investigator:

Josh Frieman

Email:

frieman@fnal.gov [1]

Institution:

Fermilab

Instrument:

CTIO 4m DECam

Organization:

N/A

Total Program Time:

3.5

Delete [2]
Edit [3]

Proposal:

203B-0440

Target of Oportunity:

Time Observed:

3.75

Time Engineering:

0.0

Time lost technical:

0.0

Time lost weather:

0.0

Time lost other:

0.0

Description:

SMASH

Primary Investigator:

David Nidever

Email:

dnidever@umich.edu [4]

Institution:

U. Michigan

Instrument:

CTIO 4m DECam

Organization:

NOAO

Total Program Time:

3.75

Delete [5]
Edit [6]

Add [7]

Total Times	Time Observed	Time Engineering	Time lost technical	Time lost weather	Time lost other	Total Program Time
2014-01-20	7.25	0.0	0.0	0.0	0.0	7.25