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ISIS Documentation

mdisproc

Runs a raw Messenger cube through ingestion and calibration

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 Austin2008-08-12 Original version
Christopher Austin2008-08-21 Fixed the trim option and added a test for it.

Parameters

Files

Input filename to be ingested, calebrated, and possibly re-exported into a cdr.
Type filename
File Mode input
Filter *.QUB *.imq *.ima *.img *.cub

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

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

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

Process the input file through all level0 steps. This includes mdis2isis.
Type boolean
Default YES

Process the input file through level1. This includes mdiscal.
Type boolean
Default YES
Inclusions
  • TRIM
  • DARKCURRENT
  • IOF

Removes the first few pixels of each line of the final cdr prouct.
Type integer
Default 3

Exports the calibrated cube back into cdr format.

If only this step needs to be ran, use mdis2pds instead.

Type boolean
Default FALSE
Inclusions
  • BITS

Calibration

Type string
Default MODEL
Option List:
Option Brief Description
NONENo correction No dark current correction will be applied
STANDARDDo 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.
LINEARUse 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.
MODELUse 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.

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

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)