Long‐Term Bias Stability of the GOES‐NOP Magnetometers
Abstract We characterize the long‐term bias stability of the GOES‐NOP series magnetometers (GOES‐13, 14, and 15) using data from 2013 through 2018. Bias stability is inferred using three methods: comparing the inboard and outboard measurements on each spacecraft, comparing the individual measurement...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Geophysical Union (AGU)
2023-11-01
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| Series: | Earth and Space Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2023EA003035 |
| _version_ | 1827631238613041152 |
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| author | S. Califf F. J. Rich T. M. Loto'aniu H. J. Singer R. J. Redmon |
| author_facet | S. Califf F. J. Rich T. M. Loto'aniu H. J. Singer R. J. Redmon |
| author_sort | S. Califf |
| collection | DOAJ |
| description | Abstract We characterize the long‐term bias stability of the GOES‐NOP series magnetometers (GOES‐13, 14, and 15) using data from 2013 through 2018. Bias stability is inferred using three methods: comparing the inboard and outboard measurements on each spacecraft, comparing the individual measurements to the TS04 magnetic field model, and comparing measurements between different GOES‐NOP spacecraft. Comparisons between the inboard and outboard magnetometers demonstrate that GOES‐14 and GOES‐15 measurements are stable within approximately 1–2 nT. The GOES‐13 inboard magnetometer has known contamination issues that hinder a useful inboard/outboard comparison, but inter‐spacecraft comparisons with GOES‐14 and GOES‐15 indicate that the GOES‐13 outboard magnetometer is also stable to 1–2 nT. Direct comparisons of each measurement to the TS04 magnetic field model support the conclusion that there is little long‐term bias drift over the 6‐year period. Model uncertainty and the variability of the field at geostationary orbit create a noise floor that is similar to the variability of the magnetometer biases. While these relative comparisons do not provide absolute measurement uncertainty, they do constrain the stability of the observations, allowing for future absolute calibration of the DC bias through different methods. |
| first_indexed | 2024-03-09T14:18:11Z |
| format | Article |
| id | doaj.art-e75a295354de49e9b7f11124c99e87ca |
| institution | Directory Open Access Journal |
| issn | 2333-5084 |
| language | English |
| last_indexed | 2024-03-09T14:18:11Z |
| publishDate | 2023-11-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Earth and Space Science |
| spelling | doaj.art-e75a295354de49e9b7f11124c99e87ca2023-11-28T20:18:31ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842023-11-011011n/an/a10.1029/2023EA003035Long‐Term Bias Stability of the GOES‐NOP MagnetometersS. Califf0F. J. Rich1T. M. Loto'aniu2H. J. Singer3R. J. Redmon4Cooperative Institute for Research in Environmental Sciences Boulder CO USALincoln Laboratory Massachusetts Institute of Technology Lexington MA USACooperative Institute for Research in Environmental Sciences Boulder CO USANOAA Space Weather Prediction Center Boulder CO USANOAA National Centers for Environmental Information Boulder CO USAAbstract We characterize the long‐term bias stability of the GOES‐NOP series magnetometers (GOES‐13, 14, and 15) using data from 2013 through 2018. Bias stability is inferred using three methods: comparing the inboard and outboard measurements on each spacecraft, comparing the individual measurements to the TS04 magnetic field model, and comparing measurements between different GOES‐NOP spacecraft. Comparisons between the inboard and outboard magnetometers demonstrate that GOES‐14 and GOES‐15 measurements are stable within approximately 1–2 nT. The GOES‐13 inboard magnetometer has known contamination issues that hinder a useful inboard/outboard comparison, but inter‐spacecraft comparisons with GOES‐14 and GOES‐15 indicate that the GOES‐13 outboard magnetometer is also stable to 1–2 nT. Direct comparisons of each measurement to the TS04 magnetic field model support the conclusion that there is little long‐term bias drift over the 6‐year period. Model uncertainty and the variability of the field at geostationary orbit create a noise floor that is similar to the variability of the magnetometer biases. While these relative comparisons do not provide absolute measurement uncertainty, they do constrain the stability of the observations, allowing for future absolute calibration of the DC bias through different methods.https://doi.org/10.1029/2023EA003035magnetometerGOEScalibration |
| spellingShingle | S. Califf F. J. Rich T. M. Loto'aniu H. J. Singer R. J. Redmon Long‐Term Bias Stability of the GOES‐NOP Magnetometers Earth and Space Science magnetometer GOES calibration |
| title | Long‐Term Bias Stability of the GOES‐NOP Magnetometers |
| title_full | Long‐Term Bias Stability of the GOES‐NOP Magnetometers |
| title_fullStr | Long‐Term Bias Stability of the GOES‐NOP Magnetometers |
| title_full_unstemmed | Long‐Term Bias Stability of the GOES‐NOP Magnetometers |
| title_short | Long‐Term Bias Stability of the GOES‐NOP Magnetometers |
| title_sort | long term bias stability of the goes nop magnetometers |
| topic | magnetometer GOES calibration |
| url | https://doi.org/10.1029/2023EA003035 |
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