This text file sets limits, definitions, and logicals for SPC.

Here is a sample to show the keywords used in INIT_LITHOS.TXT.



The following table shows additional parameters that may be used in INIT_LITHOS.TXT:


Reference to a template contained in BLEMISHES/ for masking bad pixels which are common to all FC2 images (example taken from DAWN). The template name is 12 characters, with the characters common to all affected images in the correct positions and '#' everywhere else. There may be multiple BLEMISH entries, each referring to BLEMISH template files.


Prune limit used by residuals to alert you if the number of pictures containing a landmark exceeds the limit. Landmarks exceeding the limit are listed in the output file PRUNE.TXT.

Weighting values for landmark and picture calculations.

Within INIT_LITHOS.TXT, we have weighting that goes into the solution. The actual weight that is included is the sqrt of the value provided. Thus, if you want to double the weight, you would use 4.

LMKWTS -- Landmark Weights

These weights are used to influence the position of the central vector -- the middle of the landmark.

PICWTS -- Picture Weights

These weights are what is used when solving for the spacecraft position and camera pointing.

(Compiled by KD)

CategoryFiles CategoryInputFiles