Data Set Information
DATA_SET_NAME STOOKE SMALL BODY SHAPE MODELS V2.0
DATA_SET_ID EAR-A-5-DDR-STOOKE-SHAPE-MODELS-V2.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : This data set contains the Philip Stooke shape models for small solar system bodies based on optical data from the NEAR, Galileo, Giotto, Vega 1, Vega 2, and Voyager missions. This version of the data set contains shape models for 243 Ida, 253 Mathilde, 951 Gaspra, comet Halley, J5 Amalthea, J14 Thebe, N7 Larissa, N8 Proteus, S10 Janus, S11 Epimetheus, S16 Prometheus, and S17 Pandora. The update consists of the addition of shape models for Jupiter's moon Thebe and asteroid 253 Mathilde, and the transformation of the asteroid models to reverse the longitudes in conformance with the recommendations of the IAU Working Group on Cartographic Coordinates. Some improvements to the model descriptions have also been made. Parameters : The shape models consist of a grid of body-centered latitude and longitude with a radius listed for each grid point. Coordinates are planetocentric, increasing to the west for planetary satellites, and to the east for (prograde) asteroids and comets, as recommended by the IAU Working Group on Cartographic Coordinates. West is defined as being to the left when north is up, regardless of the rotation direction of the body. For satellites, North is defined as the pole on the north side of the invariant plane of the solar system. For asteroids and comets, North is defined by the right-hand rule. These are the cartographic coordinate system definitions specified by the IAU's Working Group on Cartographic Coordinates, reported in Archinal et al. (2011). Radii are given in kilometers. Note that in the previous release of this data set, V1.0, the earlier IAU convention was followed and the asteroids and comets as well as the satellites had longitudes increasing to the west as specified in Seidelmann et al. (2002). For V2.0, the asteroids and comets' longitudes were reversed to comply with the later IAU convention specified in Archinal (2011). The models are otherwise unchanged from V1.0. References: Archinal, B.A., M.F. A'Hearn, E. Bowell, A. Conrad, G.J. Consolmagno, R. Courtin, T. Fukushima, D. Hestroffer, J.L. Hilton, G.A. Krasinsky, G. Neumann, J. Oberst, P.K. Seidelmann, P. Stooke, D.J. Tholen, P.C. Thomas, and I.P. Williams, 'Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2009', Celest. Mech. Dyn. Astr. 109:101-135, 2011. [ARCHINALETAL2011] Seidelmann, P.K., Abalakin, V.K., Bursa, M., Davies, M.E., de Bergh, C., Lieske, J.H., Oberst, J., Simon, J.L., Standish, E.M., Stooke, P.J. and P.C. Thomas. '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, 83-100, 2002. [SEIDELMANNETAL2002]
DATA_SET_RELEASE_DATE 2015-11-19T00:00:00.000Z
START_TIME 1965-01-01T12:00:00.000Z
STOP_TIME N/A (ongoing)
MISSION_NAME VEGA 1
VEGA 2
NEAR EARTH ASTEROID RENDEZVOUS
VOYAGER
GALILEO
GIOTTO
MISSION_START_DATE 1984-12-15T12:00:00.000Z
1984-12-21T12:00:00.000Z
1996-02-17T12:00:00.000Z
1972-07-01T12:00:00.000Z
1977-10-01T12:00:00.000Z
1985-07-02T12:00:00.000Z
MISSION_STOP_DATE 1986-04-01T12:00:00.000Z
2001-02-28T12:00:00.000Z
N/A (ongoing)
2003-09-21T12:00:00.000Z
1992-07-10T12:00:00.000Z
TARGET_NAME S11 EPIMETHEUS
951 GASPRA
J5 AMALTHEA
253 MATHILDE
N7 LARISSA
243 IDA
N8 PROTEUS
1P/HALLEY 1 (1682 Q1)
TARGET_TYPE SATELLITE
ASTEROID
COMET
INSTRUMENT_HOST_ID NEAR
GIO
VEGA1
VEGA2
GO
VG1
VG2
INSTRUMENT_NAME MULTI-SPECTRAL IMAGER
SOLID STATE IMAGING SYSTEM
IMAGING SCIENCE SUBSYSTEM - NARROW ANGLE
TELEVISION SYSTEM
HALLEY MULTICOLOUR CAMERA
INSTRUMENT_ID MSI
SSI
ISSN
TVS
HMC
INSTRUMENT_TYPE IMAGING CAMERA
FRAMING CAMERA
CAMERA
NODE_NAME Small Bodies
ARCHIVE_STATUS ARCHIVED
CONFIDENCE_LEVEL_NOTE The origin of the latitude/longitude coordinate system of the models is not coincident with the center of figure, with some models having a substantial offset. Shifting the origin affects the latitude and longitude of the vertices. P. Stooke note on comparison of Stooke models with those of Thomas (especially with respect to the Comet Halley model): 'Comparison of independent shape models by P. Stooke and P. Thomas for the same bodies (Amalthea, Janus, Epimetheus) suggests that Thomas tends towards models more convex than the likely shapes, and Stooke tends towards models which are too faceted, or which exaggerate the depths of depressions.'
CITATION_DESCRIPTION Stooke. P., Stooke Small Body Shape Models V2.0. EAR-A-5-DDR-STOOKE-SHAPE-MODELS-V2.0. NASA Planetary Data System, 2016.
ABSTRACT_TEXT This data set contains Philip Stooke shape models for 243 Ida, 253 Mathilde, 951 Gaspra, comet Halley, J5 Amalthea, J14 Thebe, N7 Larissa, N8 Proteus, S10 Janus, S11 Epimetheus, S16 Prometheus, and S17 Pandora, based on optical data from the NEAR, Galileo, Giotto, Vega 1, Vega 2, and Voyager missions.
PRODUCER_FULL_NAME CAROL NEESE
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