ISIS Application Documentation
Runs a raw Messenger cube through ingestion and calibration
Description
Runs a raw Messenger cube through ingestion and/or calibration.
With the optional CDR on, the final output will be a re-exported cdr img.
Categories
History
| Christopher Austin | 2008-08-12 |
Original version
|
| Christopher Austin | 2008-08-21 |
Fixed the trim option and added a test for it.
|
|
Parameter Groups
Files
|
Name
|
Description
|
| FROM |
Input Messenger img
|
| TO |
Final output filename.
|
| BANDS |
Process a subset of bands
|
| REMOVE | Remove Intermediate Files |
Level Processing
|
Name
|
Description
|
| INGESTION |
Import and initialize a Messenger RDR file.
|
| CALIBRATION |
Process the input file through the calibration phase.
|
| TRIM | Trim off poor left pixles |
| CDR | Export the calibrated image to cdr |
Calibration
|
Name
|
Description
|
| DARKCURRENT | Dark current calibration method |
| IOF |
Convert to I/F units
|
CDR
|
Name
|
Description
|
| BITS |
Number of bits for the output DN
|
|
Files:
FROM
Description
Input filename to be ingested, calebrated, and possibly re-exported into a cdr.
|
Type
| filename |
|
File Mode
| input |
|
Filter
|
*.QUB *.imq *.ima *.img *.cub
|
Files:
TO
Description
Output filename from the last enabled processing sequence. By
default the filename will be generated from the input filename with an
.cdr.IMG extension.
|
Type
| cube |
|
File Mode
| output |
|
Internal Default
| Automatic |
Files:
BANDS
Description
This parameter allows the user to specify a sub-set of
bands to process. Enter bands separated by commas (no spaces
allowed). For example, 1,3,8 or 1-3,9 or 5
|
Type
| string |
|
Internal Default
| All |
Files:
REMOVE
Description
This option allows the user to decide whether the intermediate files
created in the thmproc application are to be deleted. The default value
is TRUE.
|
Type
| boolean |
|
Default
| TRUE |
Level Processing:
INGESTION
Description
Process the input file through all level0 steps. This includes mdis2isis.
Level Processing:
CALIBRATION
Description
Process the input file through level1. This includes mdiscal.
|
Type
| boolean |
|
Default
| YES |
|
Inclusions
|
|
Level Processing:
TRIM
Description
Removes the first few pixels of each line of the final cdr prouct.
Level Processing:
CDR
Description
Exports the calibrated cube back into cdr format.
If only this step needs to be ran, use mdis2pds instead.
|
Type
| boolean |
|
Default
| FALSE |
|
Inclusions
|
|
Calibration:
DARKCURRENT
Description
|
Type
| string |
|
Default
| MODEL |
|
Option List:
|
|
Option |
Brief |
Description |
| NONE | No correction |
No dark current correction will be applied
|
| STANDARD | Do a median dark current correction |
This will use the median of the three leftmost pixels to as
the dark current, on a line by line basis.
|
| LINEAR | Use a linear fit |
This will fit a line to the leftmost pixel values, which should be
dark current data, through the lines. The equation derived from
these pixels will be used to calculate the dark current
correction, on a line by line basis.
|
| MODEL | Use pre-developed model |
Messenger has independent dark models, developed on-ground.
This will use the most recent of these models to correct the dark
current.
|
|
Calibration:
IOF
Description
This option when set wil convert the output to I/F from radiance values.
To convert from radiance to I/F (also known as radiance factor, the ratio
of measured radiance to that which would be measured from a white
perfectly Lambertian surface), the following expression should is applied:
I_over_F(f) = L(f) * PI * (SOLAR_DISTANCE/149597870.691)**2 / F(f)
where L(f) is calibrated radiance calculated for some filter f,
SOLAR_DISTANCE is that value for distance of the target object from
the center of the sun in kilometers (as indicated by the keyword
SOLAR_DISTANCE), 149597870.691 is the number of kilometers in 1 AU
and F(f) is effective average solar irradiance sampled under the
filter bandpass.
If the observed target is not of a valid body as recognized by
NAIF, the output is left in radiance.
|
Type
| boolean |
|
Default
| True |
CDR:
BITS
Description
The number of bits to compress the input data to. The valid data as
well as the five special pixel values (NULL, LIS, LRS, HIS, HRS) will be
compressed into this number of bits. The output data type will be
automaticity choosen using this value. A value of 8 will create
unsigned byte output files. Values from 9 to 16 will create unsigned
word output files. Unused bits in the unsigned word output file will be
set to zero.
|
Type
| integer |
|
Default
| 32 |
|
Minimum
| 8
(inclusive)
|
|
Maximum
| 32
(inclusive)
|