RA Range: 18h

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 2.0, 3THN, 5.0, 1.0, 30

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

 
 
  Straightforward observations of the secondary star (type B9III, 
V=13.7 mag) in the black hole binary V4641 Sgr, plus two B9-type 
stars. The program consists of 4 x 41min exposures on the main target 
in both Dic1 and Dic2 settings, which can be done in any order (also 
spread out over several nights). Plus 2 exposures (one long and one 
short) for each B9-type star and dichroic mode, which can be done any 
time and under any condition (PI is aware to have chosen a standard 
star with DEC=+32deg). 

  No special observing or scheduling constraints (for any of the OBs), 
except that it is important to fulfill the Moon Distance constraint. 
Labels on FCs are not always complete as far as OB or target names are 
concerned. Please refer to README file for exact OB--FC correspondence, 
should any doubt arise. 


 
 

Run status page 67.D-0384A

README of this run:

67.D-0384A.README