Search Publications

The second-degree gravity coefficients of Phobos from two Mars Express flybys

Pätzold, M.; Hahn, M.; Andert, T. +6 more

Several close spacecraft flybys of Phobos have been performed over the past 40 yr in order to determine the gravity field of this tiny Martian moon. In this work, the second-degree coefficients of the gravity field of Phobos were derived from the radio tracking data of two combined Mars Express flybys (2010 and 2013), by applying a least squares r…