synopsis: (1) statistical uncertainty increase due to decrease of effective integration time, (2) systematic uncertainty decrease by removing anomalous read-outs.
limitations and applicability:
none
description:
Removal of read-outs along an integration ramp that cannot be used
for the derivation of signal (sect.3.5).
purpose correction:
Removal of read-outs that are known to show strong non-linear behaviour
during the integration period. This correction prepares the data points
(read-outs) for proper processing in the subsequent calibration steps.
uncertainty/noise introduced:
In the worst case the effective integration time is reduced by at most 50%.
This happens in case of 4 read-outs per ramp where the first read-out and the
destructive read-out are removed; consequently the predicted S/N is reduced
by .
auxillary data:
Cal G file: PSELNDR
keyword(s):
USEDRS : | Use destructive readouts? | SPD header |
DISCNDRS: | number of discarded non-destructive read-outs | SPD header |