Subject: CFHT_Observing_Report
From: Web User (www@cfht.hawaii.edu)
Date: Tue Jul 29 2003 - 21:48:33 HST
CFHT OBSERVING REPORT
RunID: 03AF9
Name: LEMAIRE JL
Email Address: jean-louis.lemaire@obspm.fr
Support Astronomer: Forveille
Observing Assistant #1: Wells
Observing Assistant #2: Select
Instrument: AOB
Detector: KIR
Number of nights: 4
# of hours lost to weather: 19.5
# of hours lost to CFHT: 4
# of hours lost to setup: 1
# of hours lost to other reasons: 0
Results obtained: total observation time possible (8 PM to 5 AM)
4*9 hours= 36 hours
1st night:
very fast start on AOB+GriF (about 1 hour), with the help of Th Forveille, even if he claims himself not to be a specialist of GriF !! but I have also used the instrument several times !!
1 to 1:30 hours lost due to cirrus
2d night
very bad seeing during the second half of the night (1 to 1.5 arcsecond) 5 hours lost
3d night
TCS failure, Engineer coming from Waimea, first half of the night lost (4 hours).
A short 1 hour observation
Then humidity greater than 100% for the rest of the night, dome closed (4 hours lost).
4th night
Seeing between 1 and 1.7 arcsecond during all the night (average value 1.4 to 1.5"),
AO cannot correct efficiently, nothing serious and useful done (9 hours lost)
Scientific Success: poor
Recommendations: The setup of GriF has been very fast and easy thanks to the new users manual. Both parallelism adjustments and wavelengths calibrations have been done without any trouble.
For the time it has been in operation (i.e. when weather has allowed), GriF has been working remarkably (in integral field mode in our case, Fabry Perot only).
Considering the delay to operate a Fabry Perot on the VLT NAOS-CONICA, it appears imperative to keep this instrument in operation for the next periods
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