The Redundant Inertial Measurement Unit Attitude Determination/Calibration (RADICAL(TM)) filter was used to estimate star tracker and gyro calibration parameters using MESSENGER telemetry data from three calibration events. We present an overview of the MESSENGER attitude sensors and their configuration is given, the calibration maneuvers are described, the results are compared with previous calibrations, and variations and trends in the estimated calibration parameters are examined. The warm restart and covariance bump features of the RADICAL(TM) filter were used to estimate calibration parameters from two disjoint telemetry streams. Results show that the calibration parameters converge faster with much less transient variation during conv...
This paper describes real-time attitude determination results for the Solar, Anomalous, and Magnetos...
NASA and other space agencies have shown interest in sending humans on missions beyond low Earth orb...
MEMS accelerometers and gyroscope triads now cost less than $10, potentially opening up many new app...
This paper presents the state of the art and future prospects for autonomous real-time on-orbit cali...
textSome modern spacecraft missions require precise knowledge of the attitude, obtained from the gro...
Precision attitude determination for recent and planned space missions typically includes quaternion...
Agility describes the ability of a spacecraft to arbitrarily and rapidly reorient itself inspace. In...
An optimal algorithm for the in-flight calibration of spacecraft gyroscope systems is presented. Spe...
The literature since Apollo contains exhaustive material on attitude filtering, usually treating the...
A detailed review of the in-flight calibration of the Hubble Space Telescope attitude sensors is giv...
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.Includes...
The integration of a star tracker and gyroscope units (GUs) can take full advantage of the benefits ...
Analytic expressions for spacecraft attitude and rate estimation performance of an attitude estimati...
This paper summarizes a compilation of attitude determination accuracies attained by a number of sat...
This paper presents a comparison between two approaches to sensor calibration. According to one appr...
This paper describes real-time attitude determination results for the Solar, Anomalous, and Magnetos...
NASA and other space agencies have shown interest in sending humans on missions beyond low Earth orb...
MEMS accelerometers and gyroscope triads now cost less than $10, potentially opening up many new app...
This paper presents the state of the art and future prospects for autonomous real-time on-orbit cali...
textSome modern spacecraft missions require precise knowledge of the attitude, obtained from the gro...
Precision attitude determination for recent and planned space missions typically includes quaternion...
Agility describes the ability of a spacecraft to arbitrarily and rapidly reorient itself inspace. In...
An optimal algorithm for the in-flight calibration of spacecraft gyroscope systems is presented. Spe...
The literature since Apollo contains exhaustive material on attitude filtering, usually treating the...
A detailed review of the in-flight calibration of the Hubble Space Telescope attitude sensors is giv...
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.Includes...
The integration of a star tracker and gyroscope units (GUs) can take full advantage of the benefits ...
Analytic expressions for spacecraft attitude and rate estimation performance of an attitude estimati...
This paper summarizes a compilation of attitude determination accuracies attained by a number of sat...
This paper presents a comparison between two approaches to sensor calibration. According to one appr...
This paper describes real-time attitude determination results for the Solar, Anomalous, and Magnetos...
NASA and other space agencies have shown interest in sending humans on missions beyond low Earth orb...
MEMS accelerometers and gyroscope triads now cost less than $10, potentially opening up many new app...