Spin motion of the AJISAI satellite derived from spectral analysisof laser ranging data
Otsubo, T.
Amagai, J.
Kunimori, H.
Elphick, M.
NERC, Monks Wood;
This paper appears in: Geoscience and Remote Sensing, IEEE Transactions on
Publication Date: May 2000
Volume: 38,
Issue: 3
On page(s): 1417-1424
ISSN: 0196-2892
References Cited: 14
CODEN: IGRSD2
INSPEC Accession Number: 6619290
Digital Object Identifier: 10.1109/36.843036
Posted online: 2002-08-06 23:06:34.0
Abstract
The spin rate of the geodetic satellite AJISAI was derived through
a spectral analysis of laser range data obtained by precise
high-return-rate tracking stations. This new analysis method utilizes
the directional dependence of the target optical depth resulting from
the sparse distribution of corner cube reflectors on the satellite
surface. The third and sixth harmonics of the spin rate were found to be
dominant in the pass-by-pass spectral analysis of the full-rate range
residuals from multiphoton laser ranging systems. Accumulating hundreds
of passes, the analysis results gave the slowdown of AJISAI's spinning
from 1997 to 1998. Its trend was almost identical to the conventional
flash observation. Although the spin rate derived from this method was
not as precise as the conventional one, it can provide global spatial
coverage and continuous time coverage to monitor the spin motion. This
is a new approach to research satellite orientation and orbit and is
applicable to other satellites
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