FXTM

Name

fxtm

Purpose (one Line)

Fix bad time codes from Anderson Mesa CCD software.

Description

This is a special purpose routine for fixing bad times that are
generated from using MGO with the Hendon CCD control software at
Anderson Mesa. For a string of times, this is what it looks like:
Frame Stored time Actual time
n t(n+1) t(n)
n+1 t(n+2) t(n+1)
n+2 t(n+3) t(n+2)
n+3 t(n+3) t(n+3)
for a four frame sequence. The times for n to n+2 are actually the
times for the next frame, the n+3 time is correct. The time for
the first frame is lost.
This program copies the times that are out of place and computes
the first time by backing up from the n+1 frame by the mean of the
difference between all the other frames.

Calling Sequence

Inputs

vec - Time vector to be repaired (MODIFIED).
i1 - First point in sequence within the vector.
i2 - Last point in sequence within the vector.

Optional Input Parameters

Keyword Parameters

Outputs

vec - Time vector with i1 to i2 points repaired.

Common Blocks

Side Effects

Restrictions

Procedure

Modification History

Written 1992 Jan 28, by Marc W. Buie, Lowell Observatory