regres

Compiled by KD

Description

The program regres takes position and SPICE file information from SPC and puts it in files for export to other users. Specifically, that other user has mainly been KinetX so they can use SPC info in their navigation software.

For regrets to run a directory called "REGRES_FILES" needs to be made in the working directory. When regres is then run, export files for each picture are made (<PICTURE NAME>.TXT) and placed in the REGRES_FILES directory.

All pictures in PICLIST.TXT will be used to make the exported regres files along with landmarks in LMKLIST.TXT. However, if a PICLISTR.TXT and LMKRLIST.TXT have been made, regres will only use the pictures and landmarks from those files when making the exported regres files.

Exported File Information

REGRES FILE.  CREATED           [time of creation]
PARTIALS UNITS: PX/KM, PX/DEG

CAMERA ID
SPACECRAFT ID
TARGET ID
ABCORR

UTC                             [Image time]
ET SEC PAST J2000

NPX, NLN                        [Image size ib pixels and lines]
MMFL, CTR                       [Camera focal length and image center]
K-MATRIX

TITV                            [Inertial to camera frame rotation]
TPMI                            [Body-fixed to inertial rotation]

LITHOS SOLUTION:

SC - OBJ VECTOR
CAMERA RA, DC, TW
S/C POSITION SIG
PNT SIGMA (DEG)
TWIST SIGMA (DEG)

NOMINAL SOLUTION:

SC - OBJ VECTOR
CAMERA RA, DC, TW
SOLAR UNIT VECTOR

LANDMARKS:                      [One for each landmark]

BODY-FIXED VLM
B-F VLM SIGMA              [Formal uncertainty in LM position]
PX, LN OBSERVED            [Landmark location in image]
PX, LN PREDICTED           [Uses nominal scobj, solved pointing]
dpx/dW1, dln/dW1
dpx/dW2, dln/dW2           [Partials wrt scobj]
dpx/dW3, dln/dW3
dpx/dRA, dln/dRA
dpx/dDC, dln/dDC           [Partials wrt pointing Euler angles]
dpx/dTW, dln/dTW
C
C             END LANDMARKS
C
C             KERNEL LIST
C
C                 [list of all spice kernels used]
C
C             END FILE