Data Set Information
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| DATA_SET_NAME |
GASKELL MIMAS SHAPE MODEL V1.0
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| DATA_SET_ID |
CO-SA-ISSNA-5-MIMASSHAPE-V1.0
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| NSSDC_DATA_SET_ID |
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| DATA_SET_TERSE_DESCRIPTION |
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| DATA_SET_DESCRIPTION |
Data Set Overview : This shape model of Mimas is based on 668 Cassini Imaging Science Subsystem narrow angle camera (ISSNA) images taken in 2005-2009, and 17 Voyager 1 Imaging Science Subsystem Narrow (ISSN) camera images taken in 1980. The geometrical coordinate system of this model is defined by the planetary constants file cpck13Sep2010.tpc, available in PDS from the NAIF node. To find the file in PDS, go to the NAIF SPICE archive at http://naif.jpl.nasa.gov/naif/data_archived.html. In the table of data links, select the volume FTP link for the Cassini Orbiter mission. Within the volume, go to the data/pck directory, and download the desired file (cpck13Sep2010.tpc). The parameters of the model are as follows: Number of landmarks: 893 Formal position uncertainty: 130 m/component Number of images: 685 Pointing uncertainty: .007 mrad S/C position uncertainty: N/A Pointing residuals (relative to CK): 0.314 mrad range residuals: N/A number of measurement pairs: 97283 Number of measurements per landmark: 109 RMS LMK location residual: 297 m/componnent The models were originally prepared in the Implicitly Connected Quadrilateral (ICQ) format. Vertex-facet format versions, derived from the ICQ versions, are also provided. The filenames are mimas_quad512q.tab and mimas_ver512q.tab, where 512 is the value of Q (an indicator of the resolution). Files with three selections of lower resolution are also provided for each format, with similar filenames but lower values of q. The file 'mimasimagelist.tab' is a list of the Cassini ISSNA and Voyager 1 ISSN images used to generate this model. A text file, 'icqmodel.asc' is provided in the 'document' directory which describes the ICQ format and the derivation of the vertex-facet versions.
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| DATA_SET_RELEASE_DATE |
2011-05-31T00:00:00.000Z
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| START_TIME |
1980-11-12T12:00:00.000Z
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| STOP_TIME |
2009-06-25T12:00:00.000Z
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| MISSION_NAME |
CASSINI-HUYGENS
VOYAGER
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| MISSION_START_DATE |
1997-10-15T12:00:00.000Z
1972-07-01T12:00:00.000Z
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| MISSION_STOP_DATE |
N/A (ongoing)
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| TARGET_NAME |
MIMAS
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| TARGET_TYPE |
SATELLITE
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| INSTRUMENT_HOST_ID |
CO
VG1
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| INSTRUMENT_NAME |
IMAGING SCIENCE SUBSYSTEM - NARROW ANGLE
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| INSTRUMENT_ID |
ISSN
ISSNA
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| INSTRUMENT_TYPE |
CAMERA
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| NODE_NAME |
Small Bodies
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| ARCHIVE_STATUS |
LOCALLY_ARCHIVED
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| CONFIDENCE_LEVEL_NOTE |
Confidence Level Overview : Note that the vertex-facet versions of the model have some duplicate vertices on the edges and corners of the cube. The duplicate vertices are not used in the facet table, resulting in the presence of some vertices in the vertex table which do not appear in the facet table. This does not affect the correctness of the vertex-facet version.
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| CITATION_DESCRIPTION |
Gaskell, R.W., Gaskell Mimas Shape Model V1.0. CO-SA-ISSNA-5-MIMASSHAPE-V1.0. NASA Planetary Data System, 2011.
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| ABSTRACT_TEXT |
The shape model of Mimas derived by Robert Gaskell from Cassini ISSNA images and Voyager 1 ISSN images. The model is provided in the implicitly connected quadrilateral (ICQ) format. This version of the model was prepared on July 14, 2010. Vertex-facet versions of the models are also provided.
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| PRODUCER_FULL_NAME |
CAROL NEESE
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| SEARCH/ACCESS DATA |
SBN PSI WEBSITE
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