ISIS Application Documentation
Apply sample/line jitter offsets to the camera pointing of an observation
set
Description
This program requires an observation set of cubes to be initialized with
"spiceinit". It will then apply the offsets in the input jitter table,
after high pass filtering them, to the low pass filtered rotations in the
InstrumentPointing table of the cubes. The low pass filter is achieved by
using a least square solution to compute a polynomial fit of the right
ascension, declination, and twist angles of the rotation. This should reduce
"noisy" pointing data. To restore the original pointing just rerun
"spiceinit".
Note that this program should be used on line scan cameras. It will not work
on framing cameras.
Categories
History
| Debbie Cook | 2008-08-08 |
Original version
|
| Debbie Cook | 2009-01-10 |
Corrected error handling for master file
|
| Debbie Cook | 2009-08-03 |
Added new argument to LineScanCameraRotation
|
| Debbie Cook | 2009-08-05 |
Added alternate tolerance calculation
|
| Debbie Cook | 2010-12-23 |
Upgraded output labels for ckwriter application
|
| Debbie A. Cook | 2012-07-06 |
Updated Spice members to be more compliant with Isis coding standards. References #972.
|
| Debbie A. Cook | 2012-10-25 |
Fixed Kernels group to include the original kernels listed for the InstrumentPointing kernels
after the Table value.
|
|
Parameter Groups
Files
|
Name
|
Description
|
| FROMLIST |
Cubes to update
|
| MASTER |
Cubes used to initialize pointint fit
|
| JITTERFILE |
Ascii table of pixel jitter offsets for selected times
|
Parameters
|
Name
|
Description
|
| DEGREE |
Degree of fit
|
| PITCHRATE |
Optional replacement pitch rate
|
| YAW |
Optional replacement yaw
|
|
Files:
FROMLIST
Description
The file specifications for the input cubes all from the same
observation. The pointing for these cubes will be updated to correct
for jitter and smoothed to remove noise.
|
Type
| filename |
|
File Mode
| input |
|
Filter
|
*.lis
|
Files:
MASTER
Description
The file specification of the cube used to set the apriori pointing
fit for all the cubes in the observation FROMLIST.
|
Type
| cube |
|
File Mode
| input |
|
Filter
|
*.cub
|
Files:
JITTERFILE
Description
The file specification of the Ascii table of pixel offsets formatted
so that each line lists
sampleOffset lineOffset ephemerisTimeSeconds
|
Type
| filename |
|
File Mode
| input |
|
Filter
|
*.txt
|
Parameters:
DEGREE
Description
Enter the degree of the polynomial to fit to the data
Parameters:
PITCHRATE
Description
This value can be used to center the adjacent ccd line errors around
zero
|
Type
| double |
|
Internal Default
| No change |
Parameters:
YAW
Description
This value can be used to center the adjacent ccd sample errors around
zero
|
Type
| double |
|
Internal Default
| No change |