KPL/PCK \begindata TEXT_KERNEL_ID += 'CASSINI_ROCKS 10 MAR 2009 PCK' \begintext Cassini Spacecraft Planetary Constants Kernel for small satellites ============================================================================== The TEXT_KERNEL_ID stores version information of loaded project text kernels. Each entry associated with the keyword is a string that consists of four parts: the kernel name, version, entry date, and type. For example, the ISS I-kernel might have an entry as follows: TEXT_KERNEL_ID += 'CASSINI_ISS V0.0.0 29-SEPTEMBER-1999 IK' | | | | | | | | KERNEL NAME <-------+ | | | | | V VERSION <-------+ | KERNEL TYPE | V ENTRY DATE This kernel contains the constants for small satellites (rocks) of Saturn. Refer to the notes at the bottom of the file for help, contacts, version history,references, and Cassini-specific parameter descriptions. Disclaimer - Some of the values described in this file are not known at the present time. For these cases 'placeholder' values for Pan and Amalthea are used for bodies that do not reference the IAU [8] as the source. It is anticipated that updates to these quantities will occur as knowledge increases. Note that this file may be readily modified by you or anyone else. NAIF suggests that you inspect this file visually before proceeding with any critical or extended data processing. -------- JANUS BODY610_GM is from [14]. BODY610_PM and BODY610_RADII are from [10]. All other values from [8]. \begindata BODY610_GM = ( 0.12671 ) BODY610_RADII = ( 96.6 86.6 68.6 ) BODY610_POLE_RA = ( 40.58 -0.036 0. ) BODY610_POLE_DEC = ( 83.52 -0.004 0. ) BODY610_PM = ( 184.03 +518.238639 0. ) BODY610_LONG_AXIS = ( 0. ) BODY610_NUT_PREC_RA = ( 0. -1.623 0. 0. 0. 0. 0. 0. +0.023 ) BODY610_NUT_PREC_DEC = ( 0. -0.183 0. 0. 0. 0. 0. 0. +0.001 ) BODY610_NUT_PREC_PM = ( 0. +1.613 0. 0. 0. 0. 0. 0. -0.023 ) \begintext -------- EPIMETHEUS BODY611_GM is from [14]. BODY611_PM [10]. BODY611_RADII are from [13]. All other values from [8]. \begindata BODY611_GM = ( .03516 ) BODY611_RADII = ( 67.4 54.2 52.3 ) BODY611_POLE_RA = ( 40.58 -0.036 0. ) BODY611_POLE_DEC = ( 83.52 -0.004 0. ) BODY611_PM = ( 360.35 +518.483719 0. ) BODY611_LONG_AXIS = ( 0. ) BODY611_NUT_PREC_RA = ( -3.153 0. 0. 0. 0. 0. 0. +0.086 0. ) BODY611_NUT_PREC_DEC = ( -0.356 0. 0. 0. 0. 0. 0. +0.005 0. ) BODY611_NUT_PREC_PM = ( +3.133 0. 0. 0. 0. 0. 0. -0.086 0. ) \begintext -------- HELENE BODY612_GM is from [7]. BODY612_PM is from [10]. All other values from [8]. Mean Radius was used since the 2000 IAU report contained no value for the Subplanetary equatorial radius. \begindata BODY612_GM = ( .0017 ) BODY612_RADII = ( 16 16 16 ) BODY612_POLE_RA = ( 40.85 -0.036 0. ) BODY612_POLE_DEC = ( 83.34 -0.004 0. ) BODY612_PM = ( 63.7574 +131.5334056 0. ) BODY612_LONG_AXIS = ( 0. ) \begintext -------- TELESTO BODY613_GM is from [7]. BODY613_PM is from [10]. BODY613_RADII is from [13]. All other values from [8]. \begindata BODY613_GM = ( .00048 ) BODY613_RADII = ( 14.6 11.1 10.2 ) BODY613_POLE_RA = ( 50.51 -0.036 0. ) BODY613_POLE_DEC = ( 84.06 -0.004 0. ) BODY613_PM = ( 57.88 +190.6979332 0. ) BODY613_LONG_AXIS = ( 0. ) \begintext -------- CALYPSO BODY614_GM is from [7]. BODY614_PM is from [10]. All other values from [8]. \begindata BODY614_GM = ( 0.00024 ) BODY614_RADII = ( 15.1 11.4 7.0 ) BODY614_POLE_RA = ( 36.41 -0.036 0. ) BODY614_POLE_DEC = ( 85.04 -0.004 0. ) BODY614_PM = ( 313.8318 +190.6972373 0. ) BODY614_LONG_AXIS = ( 0. ) \begintext -------- ATLAS BODY615_GM is from [14]. BODY615_PM and BODY615_RADII are from [11]. All other values from [8]. \begindata BODY615_GM = ( 0.00040 ) BODY615_RADII = ( 22.8 19.0 9.6 ) BODY615_POLE_RA = ( 40.58 -0.036 0. ) BODY615_POLE_DEC = ( 83.53 -0.004 0. ) BODY615_PM = ( 192.90 +598.313997 0 ) BODY615_LONG_AXIS = ( 0. ) \begintext -------- PROMETHEUS BODY616_GM is from [14]. BODY616_PM [10]. BODY616_RADII are from [13]. All other values from [8]. \begindata BODY616_GM = ( 0.01058 ) BODY616_RADII = ( 59.5 43.7 30.4 ) BODY616_POLE_RA = ( 40.58 -0.036 0. ) BODY616_POLE_DEC = ( 83.53 -0.004 0. ) BODY616_PM = ( 276.260 +587.284953 0. ) BODY616_LONG_AXIS = ( 0. ) \begintext -------- PANDORA BODY617_GM is from [14]. BODY617_PM and BODY617_RADII are from [10]. All other values from [8]. \begindata BODY617_GM = ( 0.00933 ) BODY617_RADII = ( 51.5 39.8 32.0 ) BODY617_POLE_RA = ( 40.58 -0.036 0. ) BODY617_POLE_DEC = ( 83.53 -0.004 0. ) BODY617_PM = ( 154.20 +572.789100 0. ) BODY617_LONG_AXIS = ( 0. ) \begintext -------- PAN BODY618_GM is from [13]. BODY618_PM and BODY618_RADII are from [11]. For Pan, only a mean radius is given in the 2000 IAU report. \begindata BODY618_GM = ( 0.00033 ) BODY618_RADII = ( 17.6 17.3 11.5 ) BODY618_POLE_RA = ( 40.6 -0.036 0. ) BODY618_POLE_DEC = ( 83.5 -0.004 0. ) BODY618_PM = ( 326.59915 +626.03172242 0. ) BODY618_LONG_AXIS = ( 0. ) \begintext YMIR ---------------------------------------------------------- BODY619_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 619 ) NAIF_BODY_NAME += ( 'YMIR' ) BODY619_RADII = ( 9 9 9 ) BODY619_POLE_RA = ( 40.58 -0.036 0. ) BODY619_POLE_DEC = ( 83.53 -0.004 0. ) BODY619_PM = ( 48.8 +626.0440000 0. ) BODY619_LONG_AXIS = ( 0. ) \begintext PAALIAQ ---------------------------------------------------------- BODY620_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 620 ) NAIF_BODY_NAME += ( 'PAALIAQ' ) BODY620_RADII = ( 11 11 11 ) BODY620_POLE_RA = ( 40.58 -0.036 0. ) BODY620_POLE_DEC = ( 83.53 -0.004 0. ) BODY620_PM = ( 48.8 +626.0440000 0. ) BODY620_LONG_AXIS = ( 0. ) \begintext TARVOS ---------------------------------------------------------- BODY621_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 621 ) NAIF_BODY_NAME += ( 'TARVOS' ) BODY621_RADII = ( 7.5 7.5 7.5 ) BODY621_POLE_RA = ( 40.58 -0.036 0. ) BODY621_POLE_DEC = ( 83.53 -0.004 0. ) BODY621_PM = ( 48.8 +626.0440000 0. ) BODY621_LONG_AXIS = ( 0. ) \begintext IJIRAQ ---------------------------------------------------------- BODY622_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 622 ) NAIF_BODY_NAME += ( 'IJIRAQ' ) BODY622_RADII = ( 6 6 6 ) BODY622_POLE_RA = ( 40.58 -0.036 0. ) BODY622_POLE_DEC = ( 83.53 -0.004 0. ) BODY622_PM = ( 48.8 +626.0440000 0. ) BODY622_LONG_AXIS = ( 0. ) \begintext SUTTUNG ---------------------------------------------------------- BODY623_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 623 ) NAIF_BODY_NAME += ( 'SUTTUNG' ) BODY623_RADII = ( 3.5 3.5 3.5 ) BODY623_POLE_RA = ( 40.58 -0.036 0. ) BODY623_POLE_DEC = ( 83.53 -0.004 0. ) BODY623_PM = ( 48.8 +626.0440000 0. ) BODY623_LONG_AXIS = ( 0. ) \begintext KIVIUQ ---------------------------------------------------------- BODY624_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 624 ) NAIF_BODY_NAME += ( 'KIVIUQ' ) BODY624_RADII = ( 8 8 8 ) BODY624_POLE_RA = ( 40.58 -0.036 0. ) BODY624_POLE_DEC = ( 83.53 -0.004 0. ) BODY624_PM = ( 48.8 +626.0440000 0. ) BODY624_LONG_AXIS = ( 0. ) \begintext MUNDILFARI ---------------------------------------------------------- BODY625_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 625 ) NAIF_BODY_NAME += ( 'MUNDILFARI' ) BODY625_RADII = ( 3.5 3.5 3.5 ) BODY625_POLE_RA = ( 40.58 -0.036 0. ) BODY625_POLE_DEC = ( 83.53 -0.004 0. ) BODY625_PM = ( 48.8 +626.0440000 0. ) BODY625_LONG_AXIS = ( 0. ) \begintext ALBIORIX ---------------------------------------------------------- BODY626_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 626 ) NAIF_BODY_NAME += ( 'ALBIORIX' ) BODY626_RADII = ( 16 16 16 ) BODY626_POLE_RA = ( 40.58 -0.036 0. ) BODY626_POLE_DEC = ( 83.53 -0.004 0. ) BODY626_PM = ( 48.8 +626.0440000 0. ) BODY626_LONG_AXIS = ( 0. ) \begintext SKADI ---------------------------------------------------------- BODY627_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 627 ) NAIF_BODY_NAME += ( 'SKADI' ) BODY627_RADII = ( 4 4 4 ) BODY627_POLE_RA = ( 40.58 -0.036 0. ) BODY627_POLE_DEC = ( 83.53 -0.004 0. ) BODY627_PM = ( 48.8 +626.0440000 0. ) BODY627_LONG_AXIS = ( 0. ) \begintext ERRIAPO ---------------------------------------------------------- BODY628_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 628 ) NAIF_BODY_NAME += ( 'ERRIAPO' ) BODY628_RADII = ( 5 5 5 ) BODY628_POLE_RA = ( 40.58 -0.036 0. ) BODY628_POLE_DEC = ( 83.53 -0.004 0. ) BODY628_PM = ( 48.8 +626.0440000 0. ) BODY628_LONG_AXIS = ( 0. ) \begintext SIARNAQ ---------------------------------------------------------- BODY629_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 629 ) NAIF_BODY_NAME += ( 'SIARNAQ' ) BODY629_RADII = ( 20 20 20 ) BODY629_POLE_RA = ( 40.58 -0.036 0. ) BODY629_POLE_DEC = ( 83.53 -0.004 0. ) BODY629_PM = ( 48.8 +626.0440000 0. ) BODY629_LONG_AXIS = ( 0. ) \begintext THRYM ---------------------------------------------------------- BODY630_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 630 ) NAIF_BODY_NAME += ( 'THRYM' ) BODY630_RADII = ( 3.5 3.5 3.5 ) BODY630_POLE_RA = ( 40.58 -0.036 0. ) BODY630_POLE_DEC = ( 83.53 -0.004 0. ) BODY630_PM = ( 48.8 +626.0440000 0. ) BODY630_LONG_AXIS = ( 0. ) \begintext NARVI ---------------------------------------------------------- BODY631_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 631 ) NAIF_BODY_NAME += ( 'NARVI' ) BODY631_RADII = ( 3.5 3.5 3.5 ) BODY631_POLE_RA = ( 40.58 -0.036 0. ) BODY631_POLE_DEC = ( 83.53 -0.004 0. ) BODY631_PM = ( 48.8 +626.0440000 0. ) BODY631_LONG_AXIS = ( 0. ) \begintext METHONE (S1_2004) ---------------------------------------------------------- BODY632_PM is from [10]. \begindata NAIF_BODY_CODE += ( 632 ) NAIF_BODY_NAME += ( 'METHONE' ) BODY632_RADII = ( 10 10 10 ) BODY632_POLE_RA = ( 40.58 -0.036 0. ) BODY632_POLE_DEC = ( 83.53 -0.004 0. ) BODY632_PM = ( 7.0 +356.5850000 0. ) BODY632_LONG_AXIS = ( 0. ) \begintext PALLENE (S2_2004) ---------------------------------------------------------- BODY633_PM is from [10]. \begindata NAIF_BODY_CODE += ( 633 ) NAIF_BODY_NAME += ( 'PALLENE' ) BODY633_RADII = ( 10 10 10 ) BODY633_POLE_RA = ( 40.58 -0.036 0. ) BODY633_POLE_DEC = ( 83.53 -0.004 0. ) BODY633_PM = ( 321.19 +312.027133 0. ) BODY633_LONG_AXIS = ( 0. ) \begintext POLYDEUCES (S5_2004) ---------------------------------------------------------- BODY634_PM is from [10]. \begindata NAIF_BODY_CODE += ( 634 ) NAIF_BODY_NAME += ( 'POLYDEUCES' ) BODY634_RADII = ( 10 10 10 ) BODY634_POLE_RA = ( 40.58 -0.036 0. ) BODY634_POLE_DEC = ( 83.53 -0.004 0. ) BODY634_PM = ( 293.8 +131.5340000 0. ) BODY634_LONG_AXIS = ( 0. ) \begintext DAPHNIS (S1_2005) ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 635 ) NAIF_BODY_NAME += ( 'DAPHNIS' ) BODY635_RADII = ( 10 10 10 ) BODY635_POLE_RA = ( 40.58 -0.036 0. ) BODY635_POLE_DEC = ( 83.53 -0.004 0. ) BODY635_PM = ( 48.8 +626.0440000 0. ) BODY635_LONG_AXIS = ( 0. ) \begintext AEGIR ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 636 ) NAIF_BODY_NAME += ( 'AEGIR' ) BODY636_RADII = ( 10 10 10 ) BODY636_POLE_RA = ( 40.58 -0.036 0. ) BODY636_POLE_DEC = ( 83.53 -0.004 0. ) BODY636_PM = ( 48.8 +626.0440000 0. ) BODY636_LONG_AXIS = ( 0. ) \begintext BEBHIONN ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 637 ) NAIF_BODY_NAME += ( 'BEBHIONN' ) BODY637_RADII = ( 10 10 10 ) BODY637_POLE_RA = ( 40.58 -0.036 0. ) BODY637_POLE_DEC = ( 83.53 -0.004 0. ) BODY637_PM = ( 48.8 +626.0440000 0. ) BODY637_LONG_AXIS = ( 0. ) \begintext BERGELMIR ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 638 ) NAIF_BODY_NAME += ( 'BERGELMIR' ) BODY638_RADII = ( 10 10 10 ) BODY638_POLE_RA = ( 40.58 -0.036 0. ) BODY638_POLE_DEC = ( 83.53 -0.004 0. ) BODY638_PM = ( 48.8 +626.0440000 0. ) BODY638_LONG_AXIS = ( 0. ) \begintext BESTLA ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 639 ) NAIF_BODY_NAME += ( 'BESTLA' ) BODY639_RADII = ( 10 10 10 ) BODY639_POLE_RA = ( 40.58 -0.036 0. ) BODY639_POLE_DEC = ( 83.53 -0.004 0. ) BODY639_PM = ( 48.8 +626.0440000 0. ) BODY639_LONG_AXIS = ( 0. ) \begintext FARBAUTI ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 640 ) NAIF_BODY_NAME += ( 'FARBAUTI' ) BODY640_RADII = ( 10 10 10 ) BODY640_POLE_RA = ( 40.58 -0.036 0. ) BODY640_POLE_DEC = ( 83.53 -0.004 0. ) BODY640_PM = ( 48.8 +626.0440000 0. ) BODY640_LONG_AXIS = ( 0. ) \begintext FENRIR ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 641 ) NAIF_BODY_NAME += ( 'FENRIR' ) BODY641_RADII = ( 10 10 10 ) BODY641_POLE_RA = ( 40.58 -0.036 0. ) BODY641_POLE_DEC = ( 83.53 -0.004 0. ) BODY641_PM = ( 48.8 +626.0440000 0. ) BODY641_LONG_AXIS = ( 0. ) \begintext FORNJOT ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 642 ) NAIF_BODY_NAME += ( 'FORNJOT' ) BODY642_RADII = ( 10 10 10 ) BODY642_POLE_RA = ( 40.58 -0.036 0. ) BODY642_POLE_DEC = ( 83.53 -0.004 0. ) BODY642_PM = ( 48.8 +626.0440000 0. ) BODY642_LONG_AXIS = ( 0. ) \begintext HATI ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 643 ) NAIF_BODY_NAME += ( 'HATI' ) BODY643_RADII = ( 10 10 10 ) BODY643_POLE_RA = ( 40.58 -0.036 0. ) BODY643_POLE_DEC = ( 83.53 -0.004 0. ) BODY643_PM = ( 48.8 +626.0440000 0. ) BODY643_LONG_AXIS = ( 0. ) \begintext HYROKKIN ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 644 ) NAIF_BODY_NAME += ( 'HYROKKIN' ) BODY644_RADII = ( 10 10 10 ) BODY644_POLE_RA = ( 40.58 -0.036 0. ) BODY644_POLE_DEC = ( 83.53 -0.004 0. ) BODY644_PM = ( 48.8 +626.0440000 0. ) BODY644_LONG_AXIS = ( 0. ) \begintext KARI ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 645 ) NAIF_BODY_NAME += ( 'KARI' ) BODY645_RADII = ( 10 10 10 ) BODY645_POLE_RA = ( 40.58 -0.036 0. ) BODY645_POLE_DEC = ( 83.53 -0.004 0. ) BODY645_PM = ( 48.8 +626.0440000 0. ) BODY645_LONG_AXIS = ( 0. ) \begintext LOGE ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 646 ) NAIF_BODY_NAME += ( 'LOGE' ) BODY646_RADII = ( 10 10 10 ) BODY646_POLE_RA = ( 40.58 -0.036 0. ) BODY646_POLE_DEC = ( 83.53 -0.004 0. ) BODY646_PM = ( 48.8 +626.0440000 0. ) BODY646_LONG_AXIS = ( 0. ) \begintext SKOLL ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 647 ) NAIF_BODY_NAME += ( 'SKOLL' ) BODY647_RADII = ( 10 10 10 ) BODY647_POLE_RA = ( 40.58 -0.036 0. ) BODY647_POLE_DEC = ( 83.53 -0.004 0. ) BODY647_PM = ( 48.8 +626.0440000 0. ) BODY647_LONG_AXIS = ( 0. ) \begintext SURTUR ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 648 ) NAIF_BODY_NAME += ( 'SURTUR' ) BODY648_RADII = ( 10 10 10 ) BODY648_POLE_RA = ( 40.58 -0.036 0. ) BODY648_POLE_DEC = ( 83.53 -0.004 0. ) BODY648_PM = ( 48.8 +626.0440000 0. ) BODY648_LONG_AXIS = ( 0. ) \begintext ANTHE ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 649 ) NAIF_BODY_NAME += ( 'ANTHE' ) BODY649_RADII = ( 1.0 1.0 1.0 ) BODY649_POLE_RA = ( 40.66 -0.036 0. ) BODY649_POLE_DEC = ( 83.52 -0.004 0. ) BODY649_PM = ( 337.46 +381.9945550 0. ) BODY649_LONG_AXIS = ( 0. ) \begintext JARNSAXA ---------------------------------------------------------- BODY650_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 650 ) NAIF_BODY_NAME += ( 'JARNSAXA' ) BODY650_RADII = ( 3.5 3.5 3.5 ) BODY650_POLE_RA = ( 40.58 -0.036 0. ) BODY650_POLE_DEC = ( 83.53 -0.004 0. ) BODY650_PM = ( 48.8 +626.0440000 0. ) BODY650_LONG_AXIS = ( 0. ) \begintext GREIP ---------------------------------------------------------- BODY651_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 651 ) NAIF_BODY_NAME += ( 'GREIP' ) BODY651_RADII = ( 3.5 3.5 3.5 ) BODY651_POLE_RA = ( 40.58 -0.036 0. ) BODY651_POLE_DEC = ( 83.53 -0.004 0. ) BODY651_PM = ( 48.8 +626.0440000 0. ) BODY651_LONG_AXIS = ( 0. ) \begintext TARQEQ ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 652 ) NAIF_BODY_NAME += ( 'TARQEQ' ) BODY652_RADII = ( 10 10 10 ) BODY652_POLE_RA = ( 40.58 -0.036 0. ) BODY652_POLE_DEC = ( 83.53 -0.004 0. ) BODY652_PM = ( 48.8 +626.0440000 0. ) BODY652_LONG_AXIS = ( 0. ) \begintext S7_2004 ---------------------------------------------------------- BODY65035_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65035 ) NAIF_BODY_NAME += ( 'S7_2004' ) BODY65035_RADII = ( 3 3 3 ) BODY65035_POLE_RA = ( 40.58 -0.036 0. ) BODY65035_POLE_DEC = ( 83.53 -0.004 0. ) BODY65035_PM = ( 48.8 +626.0440000 0. ) BODY65035_LONG_AXIS = ( 0. ) \begintext S12_2004 ---------------------------------------------------------- BODY65040_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65040 ) NAIF_BODY_NAME += ( 'S12_2004' ) BODY65040_RADII = ( 2.5 2.5 2.5 ) BODY65040_POLE_RA = ( 40.58 -0.036 0. ) BODY65040_POLE_DEC = ( 83.53 -0.004 0. ) BODY65040_PM = ( 48.8 +626.0440000 0. ) BODY65040_LONG_AXIS = ( 0. ) \begintext S13_2004 ---------------------------------------------------------- BODY65041_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65041 ) NAIF_BODY_NAME += ( 'S13_2004' ) BODY65041_RADII = ( 3 3 3 ) BODY65041_POLE_RA = ( 40.58 -0.036 0. ) BODY65041_POLE_DEC = ( 83.53 -0.004 0. ) BODY65041_PM = ( 48.8 +626.0440000 0. ) BODY65041_LONG_AXIS = ( 0. ) \begintext S17_2004 ---------------------------------------------------------- BODY65045_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65045 ) NAIF_BODY_NAME += ( 'S17_2004' ) BODY65045_RADII = ( 2 2 2 ) BODY65045_POLE_RA = ( 40.58 -0.036 0. ) BODY65045_POLE_DEC = ( 83.53 -0.004 0. ) BODY65045_PM = ( 48.8 +626.0440000 0. ) BODY65045_LONG_AXIS = ( 0. ) \begintext S01_2006 ---------------------------------------------------------- BODY65048_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65048 ) NAIF_BODY_NAME += ( 'S01_2006' ) BODY65048_RADII = ( 3.5 3.5 3.5 ) BODY65048_POLE_RA = ( 40.58 -0.036 0. ) BODY65048_POLE_DEC = ( 83.53 -0.004 0. ) BODY65048_PM = ( 48.8 +626.0440000 0. ) BODY65048_LONG_AXIS = ( 0. ) \begintext S03_2006 ---------------------------------------------------------- BODY65050_RADII is from [12]. \begindata NAIF_BODY_CODE += ( 65050 ) NAIF_BODY_NAME += ( 'S03_2006' ) BODY65050_RADII = ( 3.5 3.5 3.5 ) BODY65050_POLE_RA = ( 40.58 -0.036 0. ) BODY65050_POLE_DEC = ( 83.53 -0.004 0. ) BODY65050_PM = ( 48.8 +626.0440000 0. ) BODY65050_LONG_AXIS = ( 0. ) \begintext S02_2007 ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 65055 ) NAIF_BODY_NAME += ( 'S02_2007' ) BODY65055_RADII = ( 10 10 10 ) BODY65055_POLE_RA = ( 40.58 -0.036 0. ) BODY65055_POLE_DEC = ( 83.53 -0.004 0. ) BODY65055_PM = ( 48.8 +626.0440000 0. ) BODY65055_LONG_AXIS = ( 0. ) \begintext S03_2007 ---------------------------------------------------------- \begindata NAIF_BODY_CODE += ( 65056 ) NAIF_BODY_NAME += ( 'S03_2007' ) BODY65056_RADII = ( 10 10 10 ) BODY65056_POLE_RA = ( 40.58 -0.036 0. ) BODY65056_POLE_DEC = ( 83.53 -0.004 0. ) BODY65056_PM = ( 48.8 +626.0440000 0. ) BODY65056_LONG_AXIS = ( 0. ) \begintext -------- URLS and CONTACTS Description of PCK format and contents can be found in NAIF's PCK "required reading" document, at: ftp://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/ascii/individual_docs/pck.req NAIF tutorial on PCK formatting: ftp://naif.jpl.nasa.gov/pub/naif/toolkit_docs/Tutorials/office/individual_docs/16_ pck.ppt The Cassini PCK & ephemeris files can be found on the DOM, and at: ftp://naif.jpl.nasa.gov/pub/naif/CASSINI/kernels/pck Adrian Tinio, Cassini/JPL, (818)354-7511 Adrian.Tinio@jpl.nasa.gov Diane Conner, Cassini/JPL, (818)354-8586 Diane.Conner@jpl.nasa.gov -------- VERSION HISTORY 2009 Mar 10 (published) Same content as the 02 Feb 2009 version. Only incremented version to avoid confusion with the merged version of this file that merges this pck with a corrected frame kernel. The merged version of this file is merged with cas_rocks_v16.tf 2009 Feb 02 (published) Redefined S06_2006 and S04_2006 to Jarnsaxa and Greip respectively. Added definitions for new bodies: Tarqeq, S02_2007, S03_2007. The radii, pole_ra,pole_dec,pm, and long axis values are placeholder values at this time unless stated otherwise. These values are expected to be updated when the info becomes known/available. By: A. Tinio 2008 Aug 25 (published) Removed definitions for body 65060. This was replaced by ANTHE. By: A. Tinio 2008 Aug 21 (published) Added a new section for the new body, ANTHE. The radii, pole_ra,pole_dec,pm, and long axis values are preliminary values at this time. These values are expected to be updated when the info becomes known/available. By: A. Tinio 2007 Oct 1 (published) Removed duplicate 'S' entries (official names already in this file): Official Name S8_2004 Fornjot S9_2004 Farbauti S10_2004 Aegir S11_2004 Bebhionn S14_2004 Hati S15_2004 Bergelmir S16_2004 Fenrir S18_2004 Bestla S19_2004 Hyrokkin S2_2006 Kari S5_2006 Loge S7_2006 Surtur S8_2006 Skoll By: E. Martinez 2007 Aug 16 (published) Added section to describe new body: K07S4 By: Elmain Martinez 2007 Apr 19 (published) Added sections to describe new bodies: Aegir Bebhionn Bergelmir Bestla Farbauti Fenrir Fornjot Hati Hyrokkin Kari Loge Skoll Surtur By: Elmain Martinez 2006 Dec 05 (published) Added sections to describe the new bodies S19_2004 and S01-S08_2006 By: Elmain Martinez 2006 Aug 23 (published) Made updates to radii values as referenced in [13]. Made updates to GM values as referenced in [14]. By: Adrian Tinio 2006 Feb 27 (published) Made file usable with 060222AP_IRRE_00256_14363.bsp which contains information about outer irregular rocks. Also updated radii values as referenced in [12]. By: Adrian Tinio 2005 Dec 13 (published) Added a new section for the new body, DAPHNIS. The radii, pole_ra,pole_dec,pm, and long axis values are only place-holder values at this time. These values are expected to be updated when the info becomes known/available. By: Adrian Tinio 2005 Dec 09 (published) The radii values for Pan and Atlas in the previous version of this file are actually diameter values. The correct radii values are as follows (values supplied by Peter Thomas): 1. ATLAS (22.8, 19.0, 9.6) 2. PAN (17.6, 17.3, 11.5) By: Adrian Tinio 2005 Dec 07 (published) This file was made to be used with SPK files 050923AP_RE_04002_09011 and sat138. 1. PM values for JANUS, EPIMETHEUS, HELENE, TELESTO, CALYPSO, ATLAS, PROMETHEUS, PANDORA, PAN, METHONE, PALLENE, and POLYDEUCES were modified to lock +X of these rocks to Saturn. Implements ECR 105009. 2. Update RADII values for JANUS, EPIMETHEUS, ATLAS, PAN, PROMETHEUS, and PANDORA. Implements ECR 105045. By: Adrian Tinio 2005 Apr 08 (published) The file was made to be used with SPK files 050407AP_RE_04002_09011 and sat138. 1. Changed the ID of POLYDEUCES (S5_2004) to 634 from 635. 2. Added IAU approved names for S1, S2 and S5 2004. 2004 Nov 30 (published) This file was made to be used with SPK files 041201BP_RE_04092_09011 and sat138. 1. Added new discoveries S1_2004, S2_2004 and S5_2004. 2. Added other small satellites. 3. Updated GMs for Janus, Epimetheus, Prometheus, and Pandora. Added reference 9. 2003 Oct 29 (published) 1. Updated NAIF ids to body name mapping per reference 6 below. 2. Updated NAIF tutorial link 3. Added a reference to the new SPK file that goes with named rocks previously identified as s1-s12. By: Diane Conner 2003 May 29 (published) 1. Changed the body names to be Upper Case. 2. Changed LDPOOL to FURNISH, in the file loading instructions. By: Diane Conner 2003 Mar 21 (Not published) Initial 1. Rearranged data in the file to follow model developed by Mission Planning for the PCK file. 2. Added reference to corresponding SPK file. By: Diane Conner References ---------------------------------------------------------- 1. ``PCK-kernel Required Reading'' 2. ``Kernel Pool Required Reading'' 3. ``Frames Required Reading'' 4. Email from Diane Conner regarding targeting small satellites, or rocks, of Saturn. 5. Jacobson, R.A., SPK file sat125.bsp. 6. Sky & Telescope Magazine,(25th General Assembly of the International Astronomical Union, held from July 13-26 in Sydney, Australia) http://skyandtelescope.com/news/article_1012_1.asp 7. Jacobson, R. A., 1996, "Orbits of the Saturnian Satellites from Earthbased and Voyager Observations", Bulletin of the American Astronmical Society 28(3), 1185. 8. Seidelmann, P.K., Abalakin, V.K., Bursa, M., Davies, M.E., Bergh, C. de, Lieske, J.H., Oberst, J., Simon, J.L., Standish, E.M., Stooke, P., and Thomas, P.C. (2002). "Report of the IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements of the Planets and Satellites: 2000," Celestial Mechanics and Dynamical Astronomy, v.82, Issue 1, pp. 83-111. 9. Jacobson, R.A., SPK file sat186 10. ECR 105009 and ECR 105045 11. Email from Peter Thomas regarding corrected radii values for Atlas and Pan. 12. Jacobson, R.A., SPK file 060222AP_IRRE_00256_14363.bsp 13. LPSC 2006 Abstract: PHYSICAL CHARACTERISTICS AND POSSIBLE ACCRETIONARY ORIGINS FOR SATURN'S SMALL SATELLITES C.C. Porco, J. W. Weiss, P. C. Thomas, D.C. Richardson, R.A. Jacobson, J. Spitale1. CICLOPS, Space Science Institute, 4750 Walnut St., Boulder, CO 80301. Center for Radiophysics and Space Research, Cornell University, Ithaca NY 14853. Department of Astronomy, University of Maryland, College Park, MD 20742. Jet Propulsion Laboratory, Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109. 14. Jacobson, R.A., SPK file sat249 15. Robert A. Jacobson, SPK Filename: sat280.bsp Implementation Notes ---------------------------------------------------------- This file is used by the SPICE system as follows: programs that make use of this frame kernel must `load' the kernel, normally during program initialization. Loading the kernel associates data items with their names in a data structure called the `kernel pool'. The SPICELIB routine FURNISH loads a kernel file into the pool as shown below: CALL FURNSH ( ) FORTRAN version furnish_c (); C version In order for a program or subroutine to extract data from the pool, the SPICELIB routines GDPOOL and GIPOOL are used. See [2] for more details. This file was created and may be updated with a text editor or word processor. Assumptions ---------------------------------------------------------- This file contains constants used to model the orientation and shape of satellites. The orientation models express the direction of the pole and location of the prime meridian of a body as a function of time. The shape models represent all bodies as ellipsoids, using two equatorial radii and a polar radius. Spheroids and spheres are obtained when two or all three radii are equal. Orientation models ---------------------------------------------------------- All of the orientation models use three Euler angles to describe body orientation. To be precise, the Euler angles describe the orientation of the coordinate axes of the `Body Equator and Prime Meridian' system with respect to an inertial system. By default, the inertial system is J2000 (also called `EME2000'), but other frames can be specified in the file. See the PCK Required Reading for details. The first two angles, in order, are the right ascension and declination (henceforth RA and DEC) of the north pole of a body as a function of time. The third angle is the prime meridian location (represented by `W'), which is expressed as a rotation about the north pole, and is also a function of time. In this file, the time arguments in expressions always refer to Barycentric Dynamical Time (TDB), measured in centuries or days past the a reference epoch. By default, the reference epoch is the J2000 epoch, which is Julian ephemeris date 2451545.0, but other epochs can be specified in the file. See the PCK Required Reading for details. Example: 1991 IAU Model for orientation of the Earth. Note that these values are used as an example only; see the data area below for current values. alpha = 0.00 - 0.641 T ( RA ) 0 delta = 90.0 - 0.557 T ( DEC ) 0 W = 190.16 + 360.9856235 d ( Prime meridian ) T represents centuries past J2000 ( TDB ), d represents days past J2000 ( TDB ). In this file, the polynomials' coefficients above are assigned to the symbols BODY399_POLE_RA BODY399_POLE_DEC BODY399_POLE_PM as follows: BODY399_POLE_RA = ( 0. -0.641 0. ) BODY399_POLE_DEC = ( +90. -0.557 0. ) BODY399_PM = ( 190.16 +360.9856235 0. ) You'll see an additional symbol grouped with the ones listed here; it is BODY399_LONG_AXIS This term is zero for all bodies except Mars. It represents the offset between the longest axis of the triaxial ellipsoid used to model a body and the prime meridian of the body. In addition to polynomial terms, there are trigonometric terms. The arguments of the trigonometric terms are linear polynomials. In this file, we call the arguments of these trigonometric terms `nutation precession angles'. In this file, the polynomial expressions for the nutation precession angles are listed along with the planet's RA, DEC, and prime meridian terms. Example: 1991 IAU nutation precession angles for Earth. Note that these values are used as an example only; see the data area below for current values. E1 = 125.045 - 0.052992 d E2 = 250.090 - 0.105984 d E3 = 260.008 + 13.012001 d E4 = 176.625 + 13.340716 d E5 = 357.529 + 0.985600 d d represents days past J2000 ( TDB ) Because the NAIF Toolkit software expects the time units for the angles to be CENTURIES (as in the IAU models for most bodies--the Earth is an exception), the linear coefficients are scaled by 36525.0 in the assignments: BODY3_NUT_PREC_ANGLES = ( 125.045 -1935.5328 250.090 -3871.0656 260.008 475263.336525 176.625 487269.6519 357.529 35999.04 ) As stated above, the satellite orientation models use polynomial and trigonometric terms, where the arguments of the trigonometric terms are the `nutation precession angles'. Example: 1988 IAU values for the Moon. Again, these values are used as an example only; see the data area below for current values. alpha = 270.000 + 0.003 T - 3.878 sin(E1) - 0.120 sin(E2) 0 + 0.070 sin(E3) - 0.017 sin(E4) (RA) delta = 66.541 + 0.013 T + 1.543 cos(E1) + 0.024 cos(E2) 0 - 0.028 cos(E3) + 0.007 cos(E4) (DEC) W = 38.317 + 13.1763582 d + 3.558 sin(E1) + 0.121 sin(E2) - 0.064 sin(E3) + 0.016 sin(E4) + 0.025 sin(E5) ( Prime meridian ) d represents days past J2000. E1--E5 are the nutation precession angles. The polynomial terms are assigned to symbols by the statements BODY301_POLE_RA = ( 270.000 0.003 0. ) BODY301_POLE_DEC = ( +66.541 0.013 0. ) BODY301_PM = ( 38.317 +13.1763582 0. ) The coefficients of the trigonometric terms are assigned to symbols by the statements BODY301_NUT_PREC_RA = ( -3.878 -0.120 +0.070 -0.017 0. ) BODY301_NUT_PREC_DEC = ( +1.543 +0.024 -0.028 +0.007 0. ) BODY301_NUT_PREC_PM = ( +3.558 +0.121 -0.064 +0.016 +0.025 ) Note that for the RA and PM (prime meridian) assignments, the ith term is the coefficient of sin(Ei) in the expression used in the IAU model, while for the DEC assignment, the ith term is the coefficient of cos(Ei) in the expression used in the IAU model. NAIF software expects the models for satellite orientation to follow the form of the model shown here: the polynomial portions of the RA, DEC, and W expressions are expected to be quadratic, the trigonometric terms for RA and W (satellite prime meridian) are expected to be linear combinations of sines of nutation precession angles, the trigonometric terms for DEC are expected to be linear combinations of cosines of nutation precession angles, and the polynomials for the nutation precession angles themselves are expected to be linear. Shape models ---------------------------------------------------------- There is only one kind of shape model supported by the NAIF Toolkit software at present: the triaxial ellipsoid. The 2000 IAU report does not use any other models. For each body, three radii are listed: The first number is the largest equatorial radius (the length of the semi-axis containing the prime meridian), the second number is the smaller equatorial radius, and the third is the polar radius. Example: Radii of the Earth. BODY399_RADII = ( 6378.14 6378.14 6356.75 )