14th International Workshop on Laser Ranging | Targets, Signatures, and Biases Session Summary

Targets

Targets, Signatures, and Biases Session Summary

G. Appleby and T. Otsubo

Title of Paper	Principal Author
Laser Retroreflector Array of Geostationary Satellite, ETS-VIII	M. Sawabe
Design of Laser Retro-Reflector Array and Laser Ranging Experiment for Shenzhou-IV Satellite	Y. Fumin
REFLECTOR, LARETS and METEOR-3M(1) what did we learn from tracking campaign results	V. Burmistrov
A New Approach for Mission Design for Geodetic Satellites	M. Lara
Lageos' Asymmetric Reflectivity	D. Arnold
Centre-of-Mass Correction Issues: Towards mm-Ranging Accuracy	T. Otsubo
Return Energy Estimates Derived from Normal Point and Full-Rate Laser Data	M. Wilkinson
Centre-of-Mass Correction Issues: Determining Intensity Dependency at a Multi-Photon (Moblas-5) Station	R. Carman
Identifying Single Retro Tracks with a 2 Khz SLR System-Simulations and Actual Results	D. Arnold

	???

Target design of new missions
- Geostationary satellite ETS-8: # of photon = 1/100 of LAGEOS
- Very low orbiter Shenzhou-4: first Chinese reflector in space
- Nearly 1-ccr response LARETS: almost no signature effect
- Dual-sphere satellite (METEOR3M-like): no signature at all! What orbit?
- Analytical orbit design tool for future missions
- Re-visiting non-gravitational force modeling for LAGEOS’
Signature and biases
- Eliminate intensity-dependent biases contaminating geodetic parameters.
- cm to mm high-low offset seen at Yarragadee and Herstmonceux (+Zimmerwald and McDonald).
- kHz system at Graz seeing every CCR (like streak camera!)
It is highly recommended that stations quantify the effect by carrying out test ranging to
Ground target, LAGEOS, Ajisai and (say) Envisat
during which return levels are switched in a controlled way between minimum and maximum return levels within the systems’ dynamic ranges.

weak	strong	weak

Author: Carey E. Noll
Responsible NASA Official: Frank Lemoine
Last Updated: February 29, 2024