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Orientation of the Voyager 1 Scan Platform during the Saturn Encounter
======================================================================
 
Version 2: Continuous, Uncorrected UVS SEDR Pointing
====================================================
 
This is a Type 3 (linear interpolation) C kernel containing pointing
information for the Voyager 1 UVS instrument during the Saturn
encounter. Using the Voyager Frames kernel, one can deduce the pointing
of any other instrument on Voyager's scan platform.
 
This C kernel describes the pointing relative to the J2000 coordinate
frame almost continuously during the encounter.
 
Data Summary
------------
 
This C kernel was generated using the pointing information encapsulated
in the "Supplemental Experiment Data Record" (SEDR) file for the
Ultraviolet Spectrometer (UVS). This SEDR file was originally generated
shortly after the Voyager flyby in Vax binary format. It was provided by
Jay Holberg at the University of Arizona's Lunar and Planetary
Laboratory.
 
Pedigree
--------
 
No corrections have been applied to the SEDR data. Because a UVS
spectrum was taken every 48 seconds through the flyby, this SEDR file
provides continuous coverage (except for one gap post-encounter).
 
The C kernel was generated using SPICE program MSOPCK.
 
Accuracy
--------
 
The UVS and ISS SEDR files show many incompatibilities at the level of ~
1 degree. In those cases where they disagree, the ISS SEDR data have
generally been found to be more accurate. However, the ISS SEDR file
only records the scan platform orientation at the time when images were
taken, leaving long intervals of the Voyager encounter with no pointing
information. The key advantage of this C kernel is its continuity, not
its accuracy. It is provided mainly for this reason, and to preserve
historical information.
 
Note that a "C-smithed" version of this C kernel is now available. See
  v1sat_version5_type3_merged_csmithed.ck
for substantially finer accuracy as well as nearly continuous temporal
coverage.
 
Contact Information
-------------------
 
Mark R. Showalter
Manager, PDS Rings Node
SETI Institute
mshowalter@seti.org
 
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MSOPCK SETUP FILE: V1SAT_VERSION2_TYPE3_UVS_SEDR.ker
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\begindata
 
INTERNAL_FILE_NAME      = 'V1SAT_VERSION2_TYPE3_UVS_SEDR.ck'
COMMENTS_FILE_NAME      = 'V1SAT_VERSION2_TYPE3_UVS_SEDR_comments.txt'
 
LSK_FILE_NAME           = 'NAIF0007.tls'
SCLK_FILE_NAME          = 'VG100008.tsc'
FRAMES_FILE_NAME        = 'VG1_V02.tf'
 
CK_TYPE                 = 3
INSTRUMENT_ID           = -31104
REFERENCE_FRAME_NAME    = 'J2000'
ANGULAR_RATE_PRESENT    = 'MAKE UP/NO AVERAGING'
DOWN_SAMPLE_TOLERANCE   = 0.
MAXIMUM_VALID_INTERVAL  = 2000
 
INPUT_DATA_TYPE         = 'MATRICES'
INPUT_TIME_TYPE         = 'SCLK'
 
PRODUCER_ID             = 'Mark R. Showalter/PDS Rings Node'
 
\begintext
 
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RUN-TIME OBTAINED META INFORMATION:
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PRODUCT_CREATION_TIME = 2007-01-02T22:16:46
START_TIME            = 1980-08-22T23:10:10.455
STOP_TIME             = 1980-12-16T02:08:35.137
 
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INTERPOLATION INTERVALS IN THE FILE SEGMENTS:
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SEG.SUMMARY: ID -31104, COVERG: 1980-08-22T23:10:10.455 1980-10-17T13:10:58.781
--------------------------------------------------------------------------------
      1980-08-22T23:10:10.455    1980-10-17T13:10:58.781
 
SEG.SUMMARY: ID -31104, COVERG: 1980-10-17T13:10:58.781 1980-12-14T04:58:11.137
--------------------------------------------------------------------------------
      1980-10-17T13:10:58.781    1980-11-20T23:59:47.066
      1980-11-25T00:00:35.066    1980-12-14T04:58:11.137
 
SEG.SUMMARY: ID -31104, COVERG: 1980-12-14T04:58:11.137 1980-12-16T02:08:35.137
--------------------------------------------------------------------------------
      1980-12-14T04:58:11.137    1980-12-16T02:08:35.137
 
 
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