RA Range: 5.5h

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 1.8, THN, 1.4-1.5, 1.0, 30

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

 
 
 Simple spectroscopic program aiming at measuring Be abundances in a 
selected sample of stars in the Orion nebula. 2 to 3 OBs per science target 
have been prepared: 1 (or 2) with the Dic1_346+580 setting and 1 with the 
Dic2_346+860 setting. Because of its low priority class, priorities (1 and 
2) and a preferable execution sequence have been provided (from 1 to 6, cf 
README file for more details). For some targets, exposure times longer than 
1h have been used, under the agreement that OBs will not be repeated should 
the conditions degrade during the time exceeding the first hour. 

 Requirements: ONE telluric standard star needs to be observed on each night 
one or more Dic1_346+580 OBs are executed. 10 OBs for two (5+5) telluric 
standard stars (HR1848 and HD35777) have been provided, although there are 
13 Dic1 OBs for the science targets. The preferred strategy would be to 
observe on the same night both Dic1 OBs, when provided (i.e. in the case of 
P2374, P1374, P1179, and P1657). However, it is important that at least one 
of the 2 Dic1 OBs of all these 4 stars is executed together with one telluric 
standard star (it does not matter which one of the two). 

 FCs: for targets P1374 and P1955 FCs are from DSS-2 (red). The BLUE guide 
camera has been selected because we are mostly interested in the Be lines 
(313nm) - however should these objects not be visible, please switch to the 
RED guide camera on the fly. 

 
 

Run status page 68.D-0237A

README of this run:

68.D-0237A.README