PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2024-02-01 NOTE = "PC-Kernel Information" END_OBJECT = TEXT END General information about SPICE PC-kernels ========================================== In the SPICE system, a PC-kernel (PcK) contains attitude and body shape information for planets, their satellites, the sun and sometimes for comets and asteroids. The purpose of the PCK kernels and associated software is to provide SPICE users with a convenient mechanism for supplying planetary physical constants to application programs. SPICE PCK software is able to read files conforming to the PCK format and return to a calling application program both the data contained in such files and a small number of commonly used numeric quantities derived from the kernel data. This software is part of the SPICELIB library, the major component of the NAIF Toolkit. Information about obtaining the SPICE Toolkit is located in the "software" subdirectory of the main directory of this dataset. Refer to the PCK Required Reading (pck.req) document provided with the toolkit or available from the NAIF Node of the PDS, to get more information on how to access PC-Kernel data. Cassini PC-kernel contained on this volume ========================================== The following PC-kernel files are included on this volume: pck[nnnnn].tpc generic text PCK files containing information for the Sun, all Solar planets and satellites, and selected comets and asteroids, based on the constants from the IAU reports cpck[ddmmmyyyy].tpc Cassini-specific text PCK files containing information for the Sun, selected planets and selected large natural satellites of the planets. While these PCKs contain data for fewer objects compared to the generic PCK files, they provide different constants for some bodies as well as additional parameters used by the CASSINI mission teams (e.g. ring sizes, body GMs, etc.) cpck_rock_[ddmmmyyyy]_merged.tpc Cassini-specific text PCK files containing attitude and body shape information as well as frame specifications for the small satellites (rocks) of Saturn. [satellite]_mst[YYYY].bpc Cassini-specific binary PCK files containing orientation data for selected satellites, based on the rotation models by M.S. Tiscareno, SETI. enceladus_ssd_230702_v1.tpc Enceladus-specific text PCK file containing rotation constants determined in 2023 by SSD/JPL when creating the SPC-based DSKs. where: [nnnnn] is the generic PCK version [ddmmmyyyy] is the date of the latest update [satellite] is the satellite name. [YYYY] is the rotation model paper publication year. Kernel File Details =================== The most detailed description of the data in a text PCK file is provided in metadata included inside the descriptive text areas within the file. This information can be viewed using any text editor. The most detailed description of the data in a binary PCK file is provided in metadata included inside the comment area of the file. This information can be viewed using the utility programs COMMNT and SPACIT included in the NAIF Toolkit. The Toolkit is available from the NAIF website. Kernel File Usage ================= Some PCK files are compatible with certain ephemeris (SPK) files. Below is a list of PCK files and the time coverage that preserves this compatibility. ------------------------------------------------------------ Coverage range PCK file Start End (YYDOY YYDOY) ------------------------------------------------------------ cpck30Sep2004_jupiter.tpc 97288 01066 cpck14Oct2004.tpc 01066 04199 cpck07Jan2005.tpc 04199 04247 cpck28Feb2005.tpc 04247 04336 cpck04May2005.tpc 04336 05015 cpck12Apr2005.tpc 05015 05034 cpck21Apr2005.tpc 05034 05060 cpck04May2005.tpc 05060 05081 cpck05May2005.tpc 05081 05097 cpck19May2005.tpc 05097 05114 cpck09Jun2005.tpc 05114 05132 cpck05Jul2005.tpc 05132 05150 cpck11Jul2005.tpc 05150 05169 cpck02Aug2005.tpc 05169 05186 cpck26Aug2005.tpc 05186 05205 cpck08Sep2005.tpc 05205 05225 cpck23Sep2005.tpc 05225 05245 cpck11Oct2005.tpc 05245 05257 cpck21Oct2005.tpc 05257 05275 cpck15Nov2005.tpc 05275 05293 cpck13Dec2005.tpc 05293 05320 cpck12Jan2006.tpc 05320 05348 cpck14Feb2006.tpc 05348 06005 cpck21Mar2006.tpc 06005 06036 cpck19Apr2006.tpc 06036 06068 cpck15May2006.tpc 06068 06099 cpck14Jun2006.tpc 06099 06130 cpck20Jul2006.tpc 06130 06162 cpck11Aug2006.tpc 06162 06193 cpck07Sep2006.tpc 06193 06217 cpck26Sep2006.tpc 06217 06240 cpck16Oct2006.tpc 06240 06260 cpck08Nov2006.tpc 06260 06276 cpck16Nov2006.tpc 06276 06292 cpck01Dec2006.tpc 06292 06308 cpck14Dec2006.tpc 06308 06318 cpck10Jan2007.tpc 06318 06332 cpck17Jan2007.tpc 06332 06342 cpck26Jan2007.tpc 06342 06356 cpck09Feb2007.tpc 06356 07008 cpck14Feb2007.tpc 07008 07023 cpck12Mar2007.tpc 07023 07042 cpck04Apr2007.tpc 07042 07062 cpck01May2007.tpc 07062 07077 cpck08May2007.tpc 07077 07094 cpck17May2007.tpc 07094 07106 cpck06Jun2007.tpc 07106 07125 cpck25Jun2007.tpc 07125 07140 cpck09Jul2007.tpc 07140 07155 cpck30Jul2007.tpc 07155 07170 cpck23Aug2007.tpc 07170 07191 cpck18Oct2007.tpc 07191 07221 cpck27Nov2007.tpc 07221 07262 cpck22Jan2008.tpc 07262 07309 cpck25Jan2008.tpc 07309 07329 cpck27Feb2008.tpc 07329 07345 cpck10Mar2008.tpc 07345 07365 cpck28Mar2008.tpc 07365 08045 cpck02May2008.tpc 08045 08067 cpck15May2008.tpc 08067 08078 cpck06Jun2008.tpc 08078 08126 cpck18Jun2008.tpc 08126 08141 cpck05Sep2008.tpc 08141 08206 cpck16Sep2008.tpc 08206 08220 cpck31Oct2008.tpc 08220 08272 cpck03Dec2008.tpc 08272 08294 cpck17Dec2008.tpc 08294 08319 cpck20Jan2009.tpc 08319 08334 cpck02Feb2009.tpc 08334 08350 cpck26Feb2009.tpc 08350 09028 cpck23Apr2009.tpc 09028 09075 cpck07May2009.tpc 09075 09089 cpck21May2009.tpc 09089 09104 cpck11Jun2009.tpc 09104 09120 cpck24Jun2009.tpc 09120 09136 cpck01Jul2009.tpc 09136 09153 cpck08Jul2009.tpc 09153 09168 cpck06Aug2009.tpc 09168 09184 cpck17Aug2009.tpc 09184 09200 cpck22Sep2009.tpc 09200 09215 cpck24Sep2009.tpc 09215 09231 cpck18Nov2009.tpc 09231 09275 cpck09Dec2009.tpc 09275 09296 cpck07Jan2010.tpc 09296 09317 cpck13Jan2010.tpc 09317 09339 cpck14Jan2010.tpc 09339 09355 cpck03Feb2010.tpc 09355 10003 cpck10Feb2010.tpc 10003 10021 cpck25Mar2010.tpc 10021 10055 cpck20Apr2010.tpc 10055 10085 cpck20May2010.tpc 10085 10110 cpck16Jun2010.tpc 10110 10132 cpck25Jun2010.tpc 10132 10146 cpck06Jul2010.tpc 10146 10164 cpck27Jul2010.tpc 10164 10178 cpck13Sep2010.tpc 10178 10216 cpck14Oct2010.tpc 10216 10256 cpck13Dec2010.tpc 10256 10302 cpck17Dec2010.tpc 10302 10326 cpck19Jan2011.tpc 10326 10344 cpck04Feb2011.tpc 10344 11003 cpck09Mar2011.tpc 11003 11041 cpck09May2011.tpc 11041 11093 cpck20May2011.tpc 11093 11119 cpck10Aug2011.tpc 11119 11150 cpck10Oct2011.tpc 11150 11246 cpck14Oct2011.tpc 11246 11267 cpck24Nov2011.tpc 11267 11303 cpck17Jan2012.tpc 11303 11337 cpck19Jan2012.tpc 11337 11357 cpck28Feb2012.tpc 11357 12016 cpck16Mar2012.tpc 12016 12042 cpck18Apr2012.tpc 12042 12077 cpck26Apr2012.tpc 12077 12098 cpck23May2012.tpc 12098 12116 cpck29Jun2012.tpc 12116 12136 cpck20Aug2012.tpc 12136 12151 cpck30Aug2012.tpc 12151 12199 cpck01Dec2012.tpc 12199 12257 cpck07Dec2012.tpc 12257 12304 cpck18Mar2013.tpc 12304 12328 cpck19Mar2013.tpc 12328 13038 cpck21Mar2013.tpc 13038 13063 cpck17Apr2013.tpc 13063 13087 cpck10Jul2013.tpc 13087 13137 cpck06Aug2013.tpc 13137 13182 cpck07Aug2013.tpc 13182 13200 cpck24Oct2013.tpc 13200 13241 cpck05Nov2013.tpc 13241 13273 cpck16Apr2014.tpc 13273 13314 cpck23Jan2014.tpc 13314 13352 cpck19Feb2014.tpc 13352 14025 cpck15Apr2014.tpc 14025 14051 cpck30Jul2014.tpc 14051 14083 cpck08Sep2014.tpc 14083 14118 cpck09Sep2014.tpc 14118 14156 cpck06Nov2014.tpc 14156 14187 cpck12Nov2014.tpc 14187 14222 cpck08Jan2015.tpc 14222 14251 cpck22Jan2015.tpc 14251 14283 cpck04Mar2015.tpc 14283 14327 cpck05May2015.tpc 14327 14365 cpck10Jun2015.tpc 14365 15033 cpck03Aug2015.tpc 15033 15066 cpck28Aug2015.tpc 15066 15116 cpck12Oct2015.tpc 15116 15161 cpck13Oct2015.tpc 15161 15180 cpck14Oct2015.tpc 15180 15222 cpck02Nov2015.tpc 15222 15261 cpck13Nov2015.tpc 15261 15280 cpck16Nov2015.tpc 15280 15295 cpck29Jan2016.tpc 15295 15310 cpck24Mar2016.tpc 15310 15347 cpck30Mar2016.tpc 15347 16007 cpck13Apr2016.tpc 16007 16025 cpck20May2016.tpc 16025 16041 cpck08Jun2016.tpc 16041 16088 cpck20Jul2016.tpc 16088 16115 cpck26Aug2016.tpc 16115 16146 cpck17Nov2016.tpc 16146 16201 cpck12Dec2016.tpc 16201 16217 cpck15Dec2016.tpc 16217 16262 cpck28Feb2017.tpc 16262 16282 cpck01Mar2017.tpc 16282 16310 cpck20Mar2017.tpc 16310 16329 cpck27Mar2017.tpc 16329 16363 cpck09May2017.tpc 16363 17061 cpck25Jul2017.tpc 17061 17104 cpck14Aug2017.tpc 17104 17117 cpck21Oct2017.tpc 17117 17146 cpck30Oct2017.tpc 17146 17177 cpck31Oct2017.tpc 17177 17224 cpck15Dec2017.tpc 17224 17258 ------------------------------------------------------------ Merged rock PCK files are not present in every data release. Contact Information =================== Regarding Cassini project specific information provided in this data set and for general information about SPICE system: Boris Semenov (818)-354-8136 Boris.Semenov@jpl.nasa.gov address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA