Lander flight path analysis

Details Lander flight path analysis Lander flight path analysis

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979vina.nasa..212e&link_type=abstract

In its Viking Navigation p 212-299 (SEE N80-21397 12-15)

Computer Science

Performance

Descent Trajectories, Trajectory Analysis, Viking Lander Spacecraft, Data Links, Interplanetary Navigation, Mars Landing, Performance, Transmission

Scientific paper

The primary functions of the Lander Flight Path Analysis Team (LFPAT) were to (1) design the Viking Lander (VL) descent trajectory and compute the descent guidance parameters for command transmission to the Viking Lander and Viking Orbiter (VO), (2) reconstruct the VL trajectory from separation to touchdown using data transmitted from the VL to Earth via the VO during descent, and (3) predict the VL/VO relay link system performance during descent and post touchdown. The preflight VL capability, the history of proposed descent trajectory designs as the site selection process evolved, and the final trajectory design and guidance parameters for each vehicle are addressed along with the trajectory reconstruction process, including the overall reconstructed VL flight path summary and a detailed discussion of the entry trajectory and atmosphere reconstruction results. The postland relay link prediction function is discussed.

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