RA Range: 10h50m

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 2.0, 4THK, 2.5, 1.0, 45

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

 
 
Standard spectroscopic program to measure the radial velocity curve 
and determine the orbital period of a white dwarf binary, for which 
a large RV variation was found during their previous RV survey. 
The run consists of 14 OBs, 13 of which (OB_ID: he1047-0436p2..p14) are 
identical and interchangeable as far as the execution order is concerned. 
he1047-0436p1 is different. 

No strong constraint on observing conditions. However, since the period 
is unknown, scheduling constraints are very stringent. The target must 
be observed during three subsequent nights, with a minimum of 5 OBs 
(mandatory) during night #1, starting with OB_ID:he1047-0436p1 (as early 
in the night as possible). The remaining OBs can be split during nights 
#2 and #3. Temporal spacing during OBs execution is important : ~1h during 
night #1 (with 0.5h-1.5h as tolerable interval); >=1h during nights 
#2 and #3. Possible schedule proposed by the P.I. : 

Night 1: OBs he1047-0436p1...he1047-0436p7
   Start with OB he1047-0436p1 (double exposure) as early in the night as
    possible. Up to 6 more OBs (he1047-0436p2...he1047-0436p7) during this 
    night, spacing between OBs: 1h (0.5 to 1.5h is tolerable)

Night 2: OBs (he1047-0436p8, he1047-0436p9, he1047-0436p10). 
   Spacing between he1047-0436p8 and he1047-0436p9: 1..2h 
   Spacing between the he1047-0436p8/p9 block and he1047-0436p10 as large
    as possible.

Night 3: OBs he1047-0436p11, he1047-0436p12
   Spacing as large as possible (beginning and end of the night would be 
    ideal)

OBs he1047-0436p13, he1047-0436p14: any night after Night 3 (within the
   next 7...14 days), one OB per night
 

 

Run status page 266.D-5658B

README of this run:

266.D-5658B.README