Appendix B

The values are given for N3.75 camera with a 1'' slit, for the N1.8 the exposure time is 1/4 for every lamp and a slit of e.g. 2'' reduces the exposure time by a factor of 2 as well!

Table: Lamps and exposure times for flats/lambdacal.
210_zJHK z J H K
Halo1 50 25 15 20
Ar 4 4 30 60
Xe 20 - 30 60
Ne - 60 - 60



200_H+K zJspec HKspec
Flatlamp Halo2 Halo1
Flat 20 4
Ar 20 20
Xe 30 20
Ne 30 -


150_Ks Ks
Halo1 25
Ar 4
Xe -
Ne 60

Dennis Kuegler 2012-10-05