This table documents the exposure times used in the EFSgui when in "Obs. Mode - Lamps". Users who wish to take customized calibration exposure sets can use this table as a basis for exposures. Notes:

1. Even the shortest itime (0.25 seconds) exposure on the arc lamps can cause persistence on SPEC. Please see the troubleshooting page for methods of avoiding and recovering from charge persistance.
2. The terminology below is (itime(s) x coadds).
3. The pre-defined exposure sequences are:
   • Low-resolution: Flatfield, test(flush), Off(at flat exposure level), Ne, Ar, test(flush).
   • High-resolution: Flatfield, test(flush), Off(at flat exposure level), Ne+Ar+Xe+Kr, test(flush).

Filter	Low Resolution		High Resolution
	Flatfield	Ne,Ar	Flatfield	Ne,Ar,Xe,Kr
NIRSPEC-1	29 x 3	0.25 x 10	59 x 3	0.25 x 10
NIRSPEC-2	29 x 3	0.25 x 10	59 x 3	0.25 x 10
NIRSPEC-3	1.9 x 7	0.25 x 10	39 x 3	0.25 x 10
NIRSPEC-4	1.3 x 7	0.25 x 10	17 x 5	0.25 x 10
NIRSPEC-5	1.5 x 7	0.25 x 10	17 x 5	0.25 x 10
NIRSPEC-6	0.25 x 10	0.25 x 10	1.5 x 7	0.25 x 10
NIRSPEC-7	0.25 x 10	0.25 x 10	3.5 x 7	0.25 x 10
BR-GAMMA(2.16)	0.25 x 10	0.25 x 10	2 x 7	0.25 x 10
CO(2.3)	0.25 x 10	0.25 x 10	2 x 7	0.25 x 10
K	0.25 x 10	0.25 x 10	3.5 x 7	0.25 x 10
K-PRIME	0.25 x 10	0.25 x 10	3.5 x 7	0.25 x 10
L-PRIME	0.25 x 10	0.25 x 10	1 x 10	0.25 x 10
M-PRIME	0.25 x 10	0.25 x 10	1 x 10	0.25 x 10
KL	0.25 x 10	0.25 x 10	1 x 10	0.25 x 10
HeI(1.08)	10 x 5	0.25 x 10	120 x 1	0.25 x 10
PA-BETA(1.28)	10 x 5	0.25 x 10	120 x 1	0.25 x 10
FeII(1.64)	1 x 10	0.25 x 10	12 x 5	0.25 x 10
H2(2.12)	0.25 x 10	0.25 x 10	2 x 7	0.25 x 10
M-WIDE	0.25 x 10	0.25 x 10	1 x 10	0.25 x 10

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Last modified: Tue Nov 7 16:56:35 HST