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Advanced Systems and Techniques Session Summary

F. Pierron and H. Kunimori

Title of Paper Principal Author
The New Mount Stromlo SLR System B. Greene
Overview of Guts SLR Station M. Sawabe
Early Satellite Tracking Results from SLR2000 J. McGarry
Graz KHz SLR System: Design, Experiences and Results G. Kirchner
The SOS-W - A Two Colour Kilohertz SLR System S. Riepl
A Compact, Totally Passive, Multi-Pass Slab Laser Amplifier Based on Stable, Degenerate Optical Resonators J. Degnan
Recent Achievements in Detectors for Eye Safe Laser Ranging I. Prochazka
Advanced Techniques at the EOS Space Research Centre B. Greene
  • Khz SLR systems in operation or near today!
  • SLR Graz (Austria)
    • Fully operational today
    • 10 ps-4OO microjoules/shot-2Khz-532nm
    • Some hundred K returns/pass to LAGEOS -10K/hour on GP
    • SPE for HEO satellites and power control for LEO-RMS<3 mm
    • Capability to identify single retro tracks
      => New challenge for analysts
  • SLR2000 (USA) Early satellites tracking results
    • Fully automated, eyesafe, 2khz
    • Star calibration and mount model OK,2 arc second accuracy
    • Ground calibrations operational, RMS still high
    • Satellites engineering passes with 60 microjoules, low return rate
      => Today tracking, still remains work, not insurmountable with funding ...
  • New stations design
    • GUTS in Japan operating since spring 2004
      • 50/300mj - 60/300ps tracking LEO to GEO satellites
      • remote controlled from more than one thousand km
      • Robust, efficient, accurate
    • Mt. Stromlo in Australia being rebuilt quickly, more efficient and accurate
      • One year between "first stone" and full operational capability!
      • Fully automated with experts software
      • Three wavelength available, eyesafe to protected mode for the laser
      • Capability to track from very LEO satellites to the Moon
    • SOS-WStromlo in Germany: A two color Kilohertz SLR system
      • Fully funded, construction in progress... operationnal to 2006!
      • Day and night two color capability from LEO to HEO satellites
      • The new generation of SLR in Wettzell !
    • EOS Space Research Center at Mt. Stromlo
      • Two telescopes: 1 m and 1.8 m, kw-class laser, adaptive optics
      • Space debris accurate tracking, laser ablations.
      • Research collaborations proposal to the community!
  • Technology for future
    • Laser (J. Degnan)
      • Idea to built totally passive, multipass amplifier for low energy oscillators(mic joules)
      • Slab between two mirrors... compact, simple to align, optic isolation, gain …
    • Detector(Czech)
      • Laser eyesafe ~ 1500 nm
      • State of the art about detectors available today
      • Tests with Ge but difficult to operate (t°)
      • InGA aS easier but rise time and accurac !!
      • Tests in progress with Ge04Si06 promising ...
  • Envisat - Cryosat missions - SLR support (European SA)
    • Bilan of the missions
    • Decreasing number of SLR observations along years
    • Need of SLR tracking even with DORIS
    • Thanks to SLR stations for supporting these missions!

 

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Author: Carey E. Noll
Responsible NASA Official: Carey E. Noll
Last Updated: August 16, 2004