Comparison of Viking Lander Descent Data and MOLA Topography Reveals Kilometer-Scale Offset in Mars Atmosphere Profiles

Author： Withers P.   Lorenz R.D.   Neumann G.A.  

Publisher： Academic Press

ISSN： 0019-1035

Source： Icarus, Vol.159, Iss.1, 2002-09, pp. : 259-261

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Abstract

Each Viking Lander measured a topographic profile during entry. Comparing to MOLA, we find a vertical offset of 1–2 km in the Viking trajectory. Hence, Viking atmospheric densities and pressures at a given altitude are 10–20% too large. © 2002 Elsevier Science (USA).

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