NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 13 of 81
Navigation Challenges of the Mars Phoenix Lander Mission
External Online Source: hdl:2014/45373
Author and Affiliation:
Portock, Brian M.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Kruizinga, Gerhard(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bonfiglio, Eugene(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Raofi, Behzad(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Ryne, Mark(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Abstract: The Mars Phoenix Lander mission was launched on August 4th, 2007. To land safely at the desired landing location on the Mars surface, the spacecraft trajectory had to be controlled to a set of stringent atmospheric entry and landing conditions. The landing location needed to be controlled to an elliptical area with dimensions of 100km by 20km. The two corresponding critical components of the atmospheric entry conditions are the entry flight path angle (target: -13.0 deg +/-0.21 deg) and the entry time (within +/-30 seconds). The purpose of this paper is to describe the navigation strategies used to overcome the challenges posed during spacecraft operations, which included an attitude control thruster calibration campaign, a trajectory control strategy, and a trajectory reconstruction strategy. Overcoming the navigation challenges resulted in final Mars atmospheric entry conditions just 0.007 deg off in entry flight path angle and 14.9 sec early in entry time. These entry dispersions in addition to the entry, descent, and landing trajectory dispersion through the atmosphere, lead to a final landing location just 7 km away from the desired landing target.
Publication Date: Aug 18, 2008
Document ID:
20150014742
(Acquired Aug 03, 2015)
Subject Category: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
Document Type: Conference Paper
Meeting Information: AIAA/AAS Astrodynamics Specialists Conference; 18-21 Aug. 2008; Honolulu, HI; United States
Meeting Sponsor: American Inst. of Aeronautics and Astronautics; Reston, VA, United States
American Astronautical Society; New York, NY, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 25p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: MARS LANDING; MARS MISSIONS; PHOENIX MARS LANDER; DESCENT TRAJECTORIES; SPACECRAFT TRAJECTORIES; TRAJECTORY CONTROL; ATTITUDE CONTROL; NAVIGATION; POSITION (LOCATION); TARGETS
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 03, 2015
Contact Us