Dirty Sumfiles

Basic Description

This is a MATLAB code that creates sumfiles and nominals, so that they can be used to create images for SPC. The MATLAB code is made up of two files. The first being a MATLAB function that calculates the pointing vectors to be placed in the sumfiles and nominals. The second file is a MATLAB script that generates the sumfiles and nominals.

What a Dirty Sumfile and Nominal Look Like

P3404527045671993 Jul 31 12:00:00.000 1024 1024 5 16383 NPX, NLN, THRSH 0.1250000000D+03 0.5115000000D+03 0.5115000000D+03 MMFL, CTR -7.0661108898e-02 -8.6621139639e-01 -3.7713683993e-01 SCOBJ -4.5038310342e-01 -4.5038310342e-01 7.7091511875e-01 CX -8.8177551817e-01 3.5986238285e-01 -3.0491146416e-01 CY -1.4009638011e-01 -8.1710104979e-01 -5.5921273118e-01 CZ 6.1333754121e-01 7.8362455606e-01 -9.8740142254e-02 SZ 117.64700 0.00000 0.00000 0.00000 117.64700 0.00000 K-MATRIX 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 DISTORTION 0.1000000000D+01 0.1000000000D+01 0.1000000000D+01 SIGMA_VSO 0.1000000000D-02 0.1000000000D-02 0.1000000000D-02 SIGMA_PTGLANDMARKSLIMB FITSEND FILE

NPX, NLN, THRSH - Pic size, lower and upper dn thresholds. Code does not generate these, but are inputs.

Map/Sam/Polycam - 1024 1024 5 16383

MMFL, CTR - Focal length, px/ln center (boresight/optical axis). Code does no generate these, but are inputs.

Mapcam - 0.1250000000D+03 0.5115000000D+03 0.5115000000D+03

Samcam - 0.0240000000D+03 0.5115000000D+03 0.5115000000D+03

Polycam - 0.6110000000D+03 0.5115000000D+03 0.5115000000D+03

SCOBJ - s/c to object vector (Object Body Fixed and km)

CX - pixel unit vector (Object Body Fixed)

CY - line unit vector (Object Body Fixed)

CZ - boresight unit vector (Object Body Fixed)

SZ - Object center to sun unit vector (Object Body Fized)

K-MATRIX - ?

DISTORTION - ? recommended to keep zero

SIGMA_VSO - formal scobj uncertainty

SIGMA_PTG - formal pointing uncertainty

Code Inputs

The majority of the code inputs are placed within the first 20 lines of the Dirty_SUMFILES.m script. An example is shown below:

% Dirty_SUMFILES% Made by Kristofer Drozd% 09/10/15clear allclcdistance_sc_vec = [0.740740740751991 2];size_d = size(distance_sc_vec);BENNU2LMRK_mat = [ -0.3311398748D-01 0.2609513595D+00 -0.3709481280D-01]';size_m = size(BENNU2LMRK_mat); naming_vector = ['C'; 'b'];for azimuth_sc = 0:20:340; for zenith_sc = 45; for azimuth_sun = 135; for zenith_sun = 30; for b = 1:size_d(2); for n = 1:size_m(2);

distance_sc_vec - is a vector that contains the distance(s) between the spacecraft and the landmark the camera is pointing at (km). Make sure it is a row vector.

BENNU2LMRK_mat - is a vector of object center to the landmark the camera is pointing at (Object Body Fixed) (km).

naming_mat - rows are for distance and columns for landmark pointing to.

azimuth_... - azimuth angle (NEZ frame)

zenith_... - zenith angle (NEZ frame)

b - don't change (not input)

n - don't change (not input)

If you wish to change the camera being used change the MMFL and CTR on line 39