RA Range: 1 - 6.5h

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

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

 

 Spectroscopy of 3 double-lined eclipsing binaries (2 in the LMC and 
1 in the SMC) in order to measure precise distances to the Clouds. 
Information provided in README file and in 2 extra files 
(68.A-0223A.TCs.By.Date and 68.A-0223A.TCs.By.OB) is fundamental 
for the successful execution of this program. 
 
 10-12 OBs are have been prepared for each target, that need to be taken 
at different but well defined orbital phases. It is crucial that ALL the 
requested spectra for each program star are obtained for successful 
disentangling of the binary system. Being a B-class program, PI strongly 
prefers to have a complete set of observations for one-two targets rather 
than partial sets for all three. The 3 targets have different priorities. 
Please, check README file for the details. 

 Calibrations: ThAr exposures are attached to each OB. Some radial 
velocity standards should be also observed during the semester: 8 such OBs 
(4 each for 2 stars) have been provided. Furthermore, 3 'template' stars 
need to be observed at any time during the semester, preferably evenly 
spread (see Special Calibration section in the README file).

==> Remember to execute science OBs only when the seeing is between 
    0.7" and 1.0".


 

Run status page 68.A-0223A

README of this run:

68.A-0223A.README