ENR CTIO Blanco 4-m 2014-01-28

Date:

Tuesday, January 28, 2014

Telescope:

CTIO Blanco 4-m

Submitter:

David Gerdes

Submitter Email:

gerdes@umich.edu

Observer Support:

Manuel Hernandez

Night Assistant:

Claudio Aguilera

Also Present:

Tomak Kacprzak (first half), E. Costa (second half)

Problems:

Database server (server2) failed in late afternoon. Eventually recovered by Liz Buckley and other experts who redirected operations to a backup machine. We got on the sky at 11:30pm local time.

Comments:

*Observing Team*

_DES Observers:_ Tomek Kacprzak, David Gerdes

_Telops:_ Claudio Aguilera, Manuel Hernandez

_Daytime Support:_ Manuel Hernandez

*Observing Plan*

# standard bias and dome flat sequence

# evening standard stars

# run ObsTac queue

# middle-of-night standards

# handover to community observer

*Conditions*

# weather in afternoon: 4pm (local): cumulus clouds on horison, moderate wind, humidity 55%

# weather after dinner: 7pm (local): clear

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

# weather summary: 2am (local): clear, stable 1.15" seeing

# Seeing conditions: 1.2" +/- 0.2"

# Wind conditions: low (5-8 mph)

# wildlife: TWO viscachas!

*Accomplishments*

# Afternoon: zeros done 278677-278685 and 278761-278769 278686-278760 (ugrizY) dome flats done, checked all ok, u dropping as usual

# Wide survey exposures: 278806-278816; 277823-277864

# Supernova fields: 278818-277822, fields C1

# Middle-of-night standards (full set since we did not do evening standards): 278865-278879

*Problems tagged as Synopsis_Problem*

# Database server (server2) experienced multiple disk failures and brought everything to a halt after afternoon calibrations. Operations were redirected to backup machine server3 thanks to heroic efforts by Liz and Klaus. Data-taking resumed around 11:30pm local time.

*Minor Problems and Relevant Information*

Evening standards not done due to computer problems.

*Notes for Data Management*

Not delivered: 278804, exposure not taken

Conditions:

General Conditions

Comment:

None.

1st Quarter

Clouds:

Clear

Wind:

Low

Seeing Value:

1.20

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky :

2nd Quarter

Clouds:

Clear

Wind:

Low

Seeing Value:

1.20

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

3rd Quarter

Clouds:

Clear

Wind:

Low

Seeing Value:

1.20

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

4th Quarter

Clouds:

Clear

Wind:

Low

Seeing Value:

1.20

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

Delete
Edit

Program:

Proposal:

2012B-0001

Target of Oportunity:

Time Observed:

2.25

Time Engineering:

0.0

Time lost technical:

1.5

Time lost weather:

0.0

Time lost other:

0.0

Description:

Dark Energy Survey

Primary Investigator:

Frieman

Email:

frieman@fnal.gov [1]

Institution:

Fermilab

Instrument:

CTIO 4m DECam

Organization:

NOAO

Total Program Time:

3.75

Delete [2]
Edit [3]

Proposal:

2013B-0614

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:

Munoz

Email:

rmunoz@das.uchile.cl [4]

Institution:

Universidad de Chile

Instrument:

CTIO 4m DECam

Organization:

Chile

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
2014-01-28	6.0	0.0	1.5	0.0	0.0	7.5