PHOBOS and Deimos astrometric observations from the PHOBOS mission
Abstract
This article describes the reduced astrometric observations of Phobos and Deimos as derived from the Phobos Mission imaging data. These astrometric data span 2 months in 1989, contain 37 sets of spacecraft-centered, right ascension and declination observations of Phobos and 8 sets of Deimos. The phobos observations have an orbital position accuracy of about 2 km while the Deimos observations have an accuracy of about 10 km. The details of observation formulation and use for ephemeris improvement are given.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- April 1991
- Bibcode:
- 1991A&A...244..236K
- Keywords:
-
- Astrometry;
- Deimos;
- Phobos;
- Satellite Imagery;
- Satellite Surfaces;
- High Resolution;
- Mars Surface;
- Planetary Orbits;
- Satellite Observation;
- MARS;
- SATELLITES;
- PHOBOS;
- DEIMOS;
- SPACECRAFT OBSERVATIONS;
- ASTROMETRY;
- PHOBOS 2 MISSION;
- EPHEMERIDES;
- EQUIPMENT;
- CAMERAS;
- DIAGRAMS;
- PROCEDURE;
- GEOMETRY;
- MODELS;
- DATA REDUCTION;
- DATA;
- Astronomy; Space Exploration; Satellites of Mars