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Ajisai: Array Offset Information

Center of Mass Information:

ref: Otsubo and Appleby, "System-dependent centre-of-mass correction for spherical geodetic satellites" Journal of Geophysical Research, 108, B4, 2201, doi: 10.1029/2002JB002209, 2003.

The standard Ajisai center-of-mass correction is 1010 mm.

correction for
single photon systems

edit level com (mm)
none 962
3.0 976
2.5 985
2.0 997

correction for
C-SPAD (mm)

FWHM pulse width
(ps)
edit level ave. num detected photons
0.1 1 10 100
1

3.0 977 990 1020 1023
2.5 985 996 1020 1023
2.0 997 1004 1021 1023
100

3.0 976 989 1012 1016
2.5 985 995 1013 1016
2.0 997 1002 1013 1016

correction for
leading-edge-half
maximum systems (mm)

FWHM pulse width (ps) com (mm)
1 1022
100 1017
300 1009
1000 993
3000 976

A convenient way to calculate appropriate CoM corrections for this satellite for any station is provided here.

Publications:

  • Otsubo, T., Amagai, J., and Kunimori, H., "Dependence of Ajisai's Center-of-Mass Correction on Laser Ranging System", Proc. of the 10th International Workshop on Laser Ranging Instrumentation, Shanghai Observatory, Chinese Academy of Sciences, Shanghai, China, November 11-15, p. 223, 1996
  • Otsubo T., Amagai J., Kunimori H., (1999). The center-of-mass correction of the geodetic satellite AJISAI for single-photon laser ranging”, IEEE Trans. on Geoscience and Remote Sensing, 37(4), pp. 2011-2018, doi: https://dx.doi.org/10.1109/36.774712