073.C-0608(A)

PI:Luz/ Courtin/ Gautier/ Lebreton/ Witasse/ Appourchaux/ Kaufer/ Ferri/ Lara

Rank Class: B

RA Range: 07:08-11:00 MOVING TARGETS!

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance):
1.0 2CLR 2.0 1.0 30

Pre-imaging run?	No!	Chilean run?	No!	Special calibrations?	Yes!
Time critical?	Yes!	ToO?	No!	Carry-over run?	No!

 
 
This is a quite complicated UVES programme aimed at measuring wind
speeds in Saturn atmosphere. Additionally, Io is also
observed for validation test purposes. The slit has to be positioned
perpendicular to the rotation axis and, therefore, the PA has to be set 
according to the exact observation time. The user has supplied appropriate
.eph files which contain PA for each target and epoch. 
Also, differential tracking rates are given with a very fine time step, in
order to allow for a good guiding. 

Saturn/Titan: 001.eph-002.eph
Io:           003.eph-009.eph

Therefore, the night astronomer is requested to enter target coordinates,
diff. tracking rates and PA at execution time.

OBs have different time constraints:

MOV_Saturn_ZON1 to 5: before April 28
MOV_Saturn_ZON6     : before May 7
MOV_Saturn_NS1-3    : before May 13
IO OBs              : before August 3rd

For the OB priorities, see the README file.

The PI is really concerned about object drifts. For this he asks the night
astronomer to inspect the slit centering frequently, and to apply suitable
corrections if needed. Target centering is crucial for the science.
 
This is the acquisition procedure that has to be followed:

1) set a pause in Bob on the first observing template;
2) start the OB and acquire the target as usual using the acquisition template,
3) while the  first observing template is paused, start secondary guiding and 
   wait until residuals have dropped below 0.1" (following the normal loop 
   frequency recommendations);
4) continue the observing template;
5) just before the first exposure a control SV image should be saved;


IMPORTANT NOTE: For Io only, the PI asks to save a sequence of 2 min
(with 5 sec frequency) Slit Viewer images during some exposures, in
order to check the slit centering. The PI is aware that this will be
done on a "best effort basis". If obtained, the data should be saved
and delivered to the user via USG. Send an e-mail to usd-help@eso.org
indicating the program ID and the place where the images can be
retrieved via ftp.


 

Run status page 073.C-0608A

README of this run:

073.C-0608A.README

Finding charts are attached to the following OBs of this run:

OB_ID

OB_name

Finding chart