for a beam-switching observation
with
CAM03
In the Beam-switching mode the slewing speed is faster than in
the raster mode, but some pointing stabilization time (t
)
must be added at the end of the slew. The time needed to move
from one field to the next is the sum of 2 terms:
= time for slewing (in sec) with slew angles 
a
few degrees, which must be evaluated for each reference field:
= 10 sec = time for stabilization of the pointing at
the end of the slew.
Since the array is read continuously, and without synchronization
with the satellite operation, one exposure is lost at the beginning
and at the end of each slew. An overhead of 
is added to each slew, or a total of:
.
One must add the overhead for the DRK, CAL and CLN OPERATIONS when they have been selected.
Find 
corresponding to the selected dark
procedure in Table 
or .
min applicable.
min applicable.
The total overhead time is:
+ 
+ 
+ 