Mariner Venus / Mercury 1973 Status Bulletin
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The Mariner 10 Pictures of Mercury' An Overview
Because of its nearness to the sun as seen from the earth, Mercury has been the least investigated terrestrial planet fro m earth-based observatories. The flybys of Mariner l0 on March 29 and September 21, 1974, have produced an enormous increase in knowledge. As can be seen in Figure l, Mariner l0 has placed Mercury in a photographic status imilar to that of the moon in the early 1960's, befor...
متن کاملMariner V: Plasma and Magnetic Fields Observed near Venus.
Abrupt changes in the amplitude of the magnetic fluctuations, in the field strength, and in the plasma properties, were observed with Mariner V near Venus. They provide clear evidence for the presence of a bow shock around the planet, similar to, but much smaller than, that observed at Earth. The observations appear consistent with an interaction of the solar wind with the ionosphere of Venus. ...
متن کاملMariner 10 stereo image coverage of Mercury
A computer search was performed on all useable Mariner 10 images of Mercury for which refined camera positions and orientations are available. Over 2000 valid stereo pairs have been found. The results of this search allowed us to construct a map illustrating the available stereo coverage and the corresponding stereo height accuracy across the surface of Mercury. Examples are given to illustrate...
متن کاملDetermination of Parameters Related to the Interior of Mercury
--Bounds on (C-A)/C for Mercury as a function of the uncertainty in the value of the obliquity are determined. The high precision of 1 of arc which is required for reasonable bounds on (C-A)/C cannot be obtained by either earth based observations or the television imagery of the Mariner 73 flyby. Among other methods discussed, one involving both landers and orbiters could determine unam2 biguou...
متن کاملMERCURY In-flight calibration of the PHEBUS UV instrument & Monte Carlo modelling of the hydrogen exosphere MEA SIMON WEDLUND
A unique feature of Mercury’s space environment is its strongly coupled surfaceexosphere-magnetosphere-solar wind system, which can be remotely monitored by space missions such as Mariner 10, MESSENGER and soon BepiColombo and by ground-based observatories. Mercury’s exosphere is a very complex medium with only a few species detected so far, including atomic hydrogen. H has only been detected o...
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