Assessing and ensuring GOES-R magnetometer accuracy

Delano Carter; Monica Todirita; Jeffrey Kronenwetter; Melissa Dahya; Donald Chu

doi:10.1117/12.2228542

2 May 2016 Assessing and ensuring GOES-R magnetometer accuracy

Delano Carter, Monica Todirita, Jeffrey Kronenwetter, Melissa Dahya, Donald Chu

Proceedings Volume 9881, Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV; 98812F (2016) https://doi.org/10.1117/12.2228542
Event: SPIE Asia-Pacific Remote Sensing, 2016, New Delhi, India

Abstract

The GOES-R magnetometer subsystem accuracy requirement is 1.7 nanoteslas (nT). During quiet times (100 nT), accuracy is defined as absolute mean plus 3 sigma error per axis. During storms (300 nT), accuracy is defined as absolute mean plus 2 sigma error per axis. Error comes both from outside the magnetometers, e.g. spacecraft fields and misalignments, as well as inside, e.g. zero offset and scale factor errors. Because zero offset and scale factor drift over time, it will be necessary to perform annual calibration maneuvers. To predict performance before launch, we have used Monte Carlo simulations and covariance analysis. With the proposed calibration regimen, both suggest that the magnetometer subsystem will meet its accuracy requirements.

Citation Download Citation

Delano Carter, Monica Todirita, Jeffrey Kronenwetter, Melissa Dahya, and Donald Chu "Assessing and ensuring GOES-R magnetometer accuracy", Proc. SPIE 9881, Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, 98812F (2 May 2016); https://doi.org/10.1117/12.2228542

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KEYWORDS

Magnetometers

Calibration

Monte Carlo methods

Space operations

Error analysis

Magnetism

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