Details
| Original language | English |
|---|---|
| Article number | 5500604 |
| Journal | IEEE Sensors Letters |
| Volume | 2 |
| Issue number | 2 |
| Early online date | 12 Apr 2018 |
| Publication status | Published - Jun 2018 |
Abstract
For missions such as GRACE, precise knowledge of the satellite's attitude is a fundamental requirement for the realization of the intersatellite ranging principle. It is not only essential for the realization of the precise in-orbit intersatellite pointing but also for the recovery of accurate temporal gravity field models. Here, we present a comparative study of two attitude datasets. One of them is the standard SCA1B RL02 datasets provided by JPL NASA, and another is a fused attitude dataset computed at TU Graz, based on the combination of ACC1B angular accelerations and SCA1B quaternions. Furthermore, we also present the impact of the attitude datasets on the intersatellite range measurements by analyzing their residuals. Our analysis reveals the significant improvement in the attitude due to the reprocessed product and reduced value of residuals computed from the reprocessed attitude.
Keywords
- attitude errors, GRACE, range-rate residuals, sensor fusion, Sensor systems
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE Sensors Letters, Vol. 2, No. 2, 5500604, 06.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Analysis of Attitude Errors in GRACE Range-Rate Residuals—A Comparison Between SCA1B and the Fused Attitude Product (SCA1B + ACC1B)
AU - Goswami, Sujata
AU - Klinger, Beate
AU - Weigelt, Matthias
AU - Mayer-Gürr, Torsten
N1 - ACKNOWLEDGMENT The authors would like to thank the DFG Sonderforschungsbereich SFB 1128 Relativistic Geodesy and Gravimetry with Quantum Sensors (geo-Q) for financial support. The authors would also like to thank Prof. J. Flury for providing the space and resources to work.
PY - 2018/6
Y1 - 2018/6
N2 - For missions such as GRACE, precise knowledge of the satellite's attitude is a fundamental requirement for the realization of the intersatellite ranging principle. It is not only essential for the realization of the precise in-orbit intersatellite pointing but also for the recovery of accurate temporal gravity field models. Here, we present a comparative study of two attitude datasets. One of them is the standard SCA1B RL02 datasets provided by JPL NASA, and another is a fused attitude dataset computed at TU Graz, based on the combination of ACC1B angular accelerations and SCA1B quaternions. Furthermore, we also present the impact of the attitude datasets on the intersatellite range measurements by analyzing their residuals. Our analysis reveals the significant improvement in the attitude due to the reprocessed product and reduced value of residuals computed from the reprocessed attitude.
AB - For missions such as GRACE, precise knowledge of the satellite's attitude is a fundamental requirement for the realization of the intersatellite ranging principle. It is not only essential for the realization of the precise in-orbit intersatellite pointing but also for the recovery of accurate temporal gravity field models. Here, we present a comparative study of two attitude datasets. One of them is the standard SCA1B RL02 datasets provided by JPL NASA, and another is a fused attitude dataset computed at TU Graz, based on the combination of ACC1B angular accelerations and SCA1B quaternions. Furthermore, we also present the impact of the attitude datasets on the intersatellite range measurements by analyzing their residuals. Our analysis reveals the significant improvement in the attitude due to the reprocessed product and reduced value of residuals computed from the reprocessed attitude.
KW - attitude errors
KW - GRACE
KW - range-rate residuals
KW - sensor fusion
KW - Sensor systems
UR - http://www.scopus.com/inward/record.url?scp=85122041429&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1802.02634
DO - 10.48550/arXiv.1802.02634
M3 - Article
AN - SCOPUS:85122041429
VL - 2
JO - IEEE Sensors Letters
JF - IEEE Sensors Letters
IS - 2
M1 - 5500604
ER -