Glonass Laser Ranging Accuracy With Satellite Signature Effect
- 195 Downloads
GLONASS satellites have been tracked by the worldwide laser ranging networkas well as by the GLONASS-borne microwave-based technique. Owing to thelarge size of their corner cube reflector arrays, the amount of ranging data is enough to determine their orbits from laser ranging data alone. We found, however, that the large size of the array affected the accuracy of measurement to an extent that is dependent on the characteristics of the ranging systems. An azimuthal variation of the reflector array response was also detected in observations from single-photon laser ranging. Orbital analysis reveals that the effect makes the measured range on average 22 mm shorter than expected in the absence of the large array, which explains more than half of the offset of 39 mm previously discovered between microwave and laser orbits.
Unable to display preview. Download preview PDF.
- Appleby, G.M., Otsubo, T. and Sinclair, A.T.: 1999, Comparison of precise SLR orbits of the GLONASS satellites with microwave orbits, Proceedings of IGEX-98 workshop, 247–257.Google Scholar
- Fliegel, H.F., Gallini, T.E., and Swift, E.R.: 1992, Global positioning system radiation force model for geodetic applications, Journal of Geophysical Research 97(B1), 559–568.Google Scholar
- Ineichen, D., Rothacher, M., Springer, T., and Beutler, G.:1999, Computation of precise GLONASS orbits for IGEX-98, Geodesy Beyond 2000, International Association of Geodesy Symposia 121, 26–31.Google Scholar
- Neubert, R.: 1994, An analytical model of satellite signature effects, Proceedings of 9th International Workshop on Laser Ranging Instrumentation, 1, 82–91.Google Scholar
- Otsubo, T., Amagai, J., and Kunimori, H.: 1999, The center-of-mass correction of the geodetic satellite AJISAI for single-photon laser ranging, IEEE Transactions on Geoscience and Remote Sensing 37(4), 2011–2018.Google Scholar