ENR CTIO Blanco 4-m 2014-01-22

*Observing Team*

 

_DES Observers:_ David Gerdes, Claudio Bruderer

_Telops:_ Alberto Alvarez

_Remote Support:_ Humberto Orrego

 

*Observing Plan*

 

# standard bias and dome flat sequence

# evening standard stars

# run ObsTac queue

# Standards carried out in banded cirrus

# handover to 2nd half

 

*Conditions*

 

# weather in afternoon: 4pm (local): clear skies above, very few clouds on horizon

# weather after dinner: 7pm (local): Few cirrus clouds across the sky, otherwise clear.

# weather at 10 deg twilight: 21:30 (local): Clouds gone, sky quite clear, low wind

# weather summary: 2am (local): Sky still clear, low wind out of the North

# Seeing conditions: Median: 0.85  RMS: 0.16

# Wind conditions: Low the whole half-night

 

*Accomplishments*

 

# Afternoon: zeros done 276849-276860 and 276935-276943, (ugrizY) dome flats done 276861-276934, checked all ok, u dropping as usual

# Winner of post sunset leisure activity: NOT the Viscachas (none seen)

# Evening: Standards 276947-276961

# Survey Exposures 276964-277075

# Middle of night (end of half night): Standards 277076-277080

 

 

*Problems tagged as Synopsis_Problem*

 

None.

 

*Minor Problems and Relevant Information*

 

# Occlusion alarms: 2 alarms during the night.

 

 

*Notes for Data Management*

 

None