RAW mode observations

RAW mode observations are extremenly inefficient (see tables below).

Imaging

All on-chip chopping.
Filter RAW mode
N8.8
UIR8.6
UIR11.2
4.7%
N9.7 N/A
N10.5
N11.7
N12.4
2.0%
ArIII N/A
SIV 31%
NeII 20%

Spectroscopy

Grating Efficiency
NL 18%
NM FULL N/A
NH N/A

For this reason (low efficiency) alone, we would not recommend the use of RAW mode; however, if it is still considered essential for some scientific purposes, please contact Support Scientist.



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