Data Set Information
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| DATA_SET_NAME |
ROSETTA-ORBITER 67P NAVCAM 2 PRELANDING MTP006 V1.0
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| DATA_SET_ID |
RO-C-NAVCAM-2-PRL-MTP006-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::The data from the Rosetta Navigation Camera (NavCam) was extracted byBernhard Geiger; the data set was constructed and submitted by MaudBarthelemy on behalf of the Planetary Science Archives (PSA).The data have been observed and measured from Aug 1st 2014 to Sept 2nd2014. From Aug 1st to Aug 22nd, the frequency of the navigation slotswas of once per hour (484 images). Then, until Sep 2nd, one 2x2 rasterwith four images was taken every four hours (4*66:264 images).There was no lost neither incomplete navigation image. But from2014-08-04T23:07:18.848 to 2014-08-05T09:52:18.938, the navigationimages are without nucleus in the field-of-view due to a relativelylarge trajectory deviation and hence comet pointing errors.Also, there are 11 context images with lost rows (anomaly in thetransfer to the spacecraft memory only occurring for context images).Distances are from 832km to 51.7km.The trajectory consisted of comet approach and pyramid arcs of thecharacterisation phase.All images in this data set are raw and uncalibrated data taken usingthe imaging mode. The data set contains images resolved using bothNavCams onboard the Rosetta S/C and the DATA directory is organisedto reflect this with two sub directories: - CAM1 - CAM2For each image, the user can also find the FITS format of theobservation.:Filename Convention::The filenaming convention for all data levels is given by: __. ROS CAM1 YYYYMMDDThhmmss IMG CAM2 LBL (JPG)Examples: ROS_CAM1_20140223T081016.IMG ROS_CAM1_20140223T081016.LBL ROS_CAM1_20140223T081016F.FIT ROS_CAM1_20140223T081016F.LBL (ROS_CAM1_20140223T081016.JPG) ROS_CAM2_20140223T094017.IMG ROS_CAM2_20140223T094017.LBL ROS_CAM2_20140223T094017F.FIT ROS_CAM2_20140223T094017F.LBL (ROS_CAM2_20140223T094017.JPG)(In the case of the BROWSE directory):Geometry Information - Coordinate System::The label files include the following geometric variables:- SC SUN POSITION VECTOR: The vector from the spacecraft to the Sun in equatorial J2000 inertial frame.- SC TARGET POSITION VECTOR: The vector from the spacecraft to the centre of the comet nucleus in equatorial J2000 inertial frame.- SC TARGET VELOCITY VECTOR: The spacecraft to comet nucleus velocity vector in in equatorial J2000 inertial frame.- TARGET CENTER DISTANCE: The distance between the spacecraft and the comet nucleus centre. (Note that also for checkout and stellar calibration images the comet nucleus distance is given here.)- SUB SPACECRAFT LATITUDE and SUB SPACECRAFT LONGITUDE: The latitudeand longitude of the sub-spacecraft point derived from the FlightDynamics body-fixed reference frame implicitly specified by theinformation provided in the comet attitude file CATT.- RIGHT ASCENSION and DECLINATION: Right Ascension and Declination ofthe camera boresight direction in equatorial J2000 inertial frame.- CELESTIAL NORTH CLOCK ANGLE: The direction of celestial north at the center of the image - measured from the upward direction, clockwise to the direction toward celestial north.- SOLAR ELONGATION: The angle between the line of sight of observation and the direction of the Sun.All geometric values are calculated for the time t : IMAGE TIME(and not START TIME).:
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| DATA_SET_RELEASE_DATE |
2015-04-30T00:00:00.000Z
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| START_TIME |
2014-08-01T10:00:00.000Z
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| STOP_TIME |
2014-09-02T10:00:00.000Z
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| MISSION_NAME |
INTERNATIONAL ROSETTA MISSION
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| MISSION_START_DATE |
1995-03-01T12:00:00.000Z
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| MISSION_STOP_DATE |
N/A (ongoing)
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| TARGET_NAME |
67P/CHURYUMOV-GERASIMENKO 1 (1969 R1)
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| TARGET_TYPE |
COMET
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| INSTRUMENT_HOST_ID |
RO
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| INSTRUMENT_NAME |
NAVIGATION CAMERA
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| INSTRUMENT_ID |
NAVCAM
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| INSTRUMENT_TYPE |
CCD CAMERA
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| NODE_NAME |
Small Bodies
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| ARCHIVE_STATUS |
IN LIEN RESOLUTION
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| CONFIDENCE_LEVEL_NOTE |
All data have been validated by ESA and found as expected. Any exceptions are noted by the DATA_QUALITY field in the label files.
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| CITATION_DESCRIPTION |
Geiger, B. and M. Barthelemy, ROSETTA ORBITER NAVCAM PRL-MTP006, RO-C-NAVCAM-2-PRL-MTP006-V1.0, ESA Planetary Science Archive and NASA Planetary Data System, 2015.
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| ABSTRACT_TEXT |
This dataset contains ROSETTA NAVCAM RAW DATA of the Prelanding Phase from 1st Aug 2014 to 2nd Sep 2014 before reaching target 67P/CG.
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| PRODUCER_FULL_NAME |
BERNHARD GEIGER
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| SEARCH/ACCESS DATA |
SBN Comet Website
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