Isis 2 Documentation
rand2ck1 - Convert camera angles in Rand format to Naif ckernel This program reads the camera angles in a Rand formatted ascii table file and writes them out to a NAIF type-1 (discreet) camera kernel (c-kernel). After a c-kernel is created it should be documented by running the NAIF prorgram commnt. An ASCII comment file will need to be supplied to the commnt program. For an example of the comments see /home/dcook/isis/apps/gen/sample_ck_comments.sav To run commnt type /usgs/naif/ctools/exe/commnt and follow the prompts. PROGRAMMER: Debbie A. Cook, U.S.G.S., Flagstaff
Parm | Description | Default |
---|---|---|
MISSION | Spacecraft name | -- |
INSTRUM | Instrument name (for Voyager only -- NA or WA) | -- |
RANDFROM | Input RAND geometry table (no default extension) | NONE |
SCLKFROM | Input NAIF spacecraft clock file (no default extension) | NONE |
LEAPFILE | Leapseconds kernel | "$ISISDATA/mk98264a.tls" |
CK1TO | Output NAIF type 1 CK (no default extension) | NONE |
CUBELIST | List of cubes in RAND table | NONE |
INSTID | NAIF instrument id | NONE |
REFFRAM | NAIF inertial frame of ck data | NONE |
SEGID | Segment identifier string | NONE |
TOL | Search tolerance |
ADDITIONAL NOTES:
Parm | Description |
---|---|
MISSION | This is the spacecraft name that will be translated to a NAIF instrument code and used to specify the encoding of the spacecraft clock time. |
INSTRUM | This parameter is for MISSION=VOYAGER 1 or 2 only. It is ignored for all other missions, but required for Voyager. The program builds Voyager ck files based on actual pointing instances for the instrument instead of the scan platform like other missions so separate ck files are created for each Voyager camera. |
RANDFROM | This file is a RAND (Mert Davies), ascii geometry table file. Typical extension is rand. |
SCLKFROM | This file is a NAIF ascii spacecraft clock file. |
LEAPFILE | This is the NAIF leapseconds kernel file needed to convert the start time in the geometry table to ephemeris seconds past J2000 and finally to the encoded spacecraft clock ticks stored in the output c-kernel. |
CK1TO | This is the name of the NAIF type-1 camera kernel. It will the contain discreet pointing data from the input file GEMFROM in a single segment. |
INSTID | This is the NAIF instrument id for the input data. NAIF supported instrument id's are listed in the file naif_ids.req. MISSION instrument id Clementine UVVIS -40002 Galileo Orbiter SSI -77001 Voyager 1 ISSNA -31001 Voyager 1 ISSWA -31002 Voyager 2 ISSNA -32001 Voyager 2 ISSWA -32002 Viking Orbiter 1 all -27000 Viking Orbiter 2 all -30000 Cassini all -82000 Lunar Orbiter 2 all -532000 Lunar Orbiter 3 all -533000 Lunar Orbiter 4 all -534000 Lunar Orbiter 5 all -535000 |
REFFRAM | This is the NAIF code for the inertial frame of the data. Typical values are J2000 or B1950. |
SEGID | This is an identifying string to reference the data. Example: "GLL SCAN PLT -- NAIF -- 18-NOV-90" would identify a ck as Galileo Orbiter scan platform pointing created by NAIF on November 18, 1990. |
TOL | The search tolerance is used both to screen kernels as well as to locate pointing data for a specific instance in time. The beginning and ending times recorded in the header of the ck created will be the earliest time less TOL and the latest time plus TOL for each segment. This padding prevents times matching the actual first and last entries from failing the ck screening. MISSION instrument tol Galileo Orbiter SSI 1 Voyager 1 ISSNA 800 Voyager 1 ISSWA 800 Voyager 2 ISSNA 800 Voyager 2 ISSWA 800 Viking Orbiter 1 all 2000 Viking Orbiter 2 all 2000 Cassini all 4096 (16 seconds) Lunar Orbiters all 1.5 |
Contact us online at the Isis Support Center: http://isisdist.wr.usgs.gov