Add to ORKGThe attitude reconstitution (AR) procedure that will be used for the reduction of Hipparcos data is examined. The principles underlying the Hipparcos mission are briefly reviewed, and the AR specifications are explained. The sufficiency of the Star Mapper data to attain target accuracy is demonstrated. Encouraging results obtained from simulated experiments are reporte
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The measurement of the positions, distances, motions and luminosities of stars represents the founda...
The Hipparcos solutions flagged as unreliable after the completion of the standard data processing h...
In the processing of scientific data for the ESA HIPPARCOS astrometric mission, the on-ground attitu...
A detailed study of the Hipparcos attitude exposed events in the satellite’s motion (micro...
The new reduction of the Hipparcos data presents a very significant improvement in the overall relia...
We present an outline of a new reduction of the Hipparcos astrometric data, the justifications of wh...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The knowledge of astrometric data of stars in our Galaxy was growing very slowly during the last dec...
The ESA Astrometry Satellite HIPPARCOS has provided for nearly 120000 stars positions, proper motion...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The problem of accidental error propagation in the most general `global solution' of a Hipparco...
Astrometric and photometric measurements of a number of solar system objects were performed by the H...
The successful ESA mission Hipparcos provided very precise parallaxes positions and proper motions o...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The measurement of the positions, distances, motions and luminosities of stars represents the founda...
The Hipparcos solutions flagged as unreliable after the completion of the standard data processing h...
In the processing of scientific data for the ESA HIPPARCOS astrometric mission, the on-ground attitu...
A detailed study of the Hipparcos attitude exposed events in the satellite’s motion (micro...
The new reduction of the Hipparcos data presents a very significant improvement in the overall relia...
We present an outline of a new reduction of the Hipparcos astrometric data, the justifications of wh...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The knowledge of astrometric data of stars in our Galaxy was growing very slowly during the last dec...
The ESA Astrometry Satellite HIPPARCOS has provided for nearly 120000 stars positions, proper motion...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The problem of accidental error propagation in the most general `global solution' of a Hipparco...
Astrometric and photometric measurements of a number of solar system objects were performed by the H...
The successful ESA mission Hipparcos provided very precise parallaxes positions and proper motions o...
Technical note written as input to the early studies of the ESA space astrometry project Hipparcos
The measurement of the positions, distances, motions and luminosities of stars represents the founda...
The Hipparcos solutions flagged as unreliable after the completion of the standard data processing h...