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13th International Laser Ranging Workshop
"Toward Millimeter Accuracy"

Improved or Upgraded Systems - Poster Session (F. Pierron and S. Wetzel, for Y. Fumin)
Session Summary

Title Primary Author
SLR2000 Software: Current Test Results and Recent Developments Jan McGarry
McDonald Ranging: 30 Years and Still Going Peter Shelus
Replacement of the LURE Telescope Controller Using COTS Components Using Commercial Off-The-Shelf Components Daniel O'Gara
System Stability Improvement of Changchun SLR System You Zhao
Improving SALRO Accuracy Abdallah Azzeer
Ultra mobile station FTLRS: Software Control Monique Pierron
The New MLRS Encoder System: Progress Report Jerry Wiant
Improvements of the French Transportable Laser Ranging Station to high accuracy level Francis Pierron
Upgrading of the Simeiz-1873 SLR Station Sergiy Filikov
First Laser Ranging Results of the new Potsdam SLR System Ludwig Grunwaldt
System Upgrades of the NASA SLR Network David Carter
Upgrades of Shanghai Satellite Laser Ranging Station Yang Fumin
NASA SLR Network MCP PMT Upgrade Howard Donovan
GUTS – A New SLR System for Japan Thomas Oldham
Integration of 1.5m Telescope and ranging system in CRL Hiroo Kunimori

The Improved or Upgradesd Systems poster session had many excellent posters showing that the ILRS systems always strive to improve toward mm accuracy. This summary breaks up the session into three major groups; new systems or major changes; systems in operation and going toward millimeter accuracy; and technical issues.

New Systems or Major Changes

There are many organizations and systems that are either developing new SLR systems or have made major changes to either their system. These include, the SLR2000, FTLRS, Potsdam, CRL, and GUTS systems.

The SLR2000 prototype continues its development with the computers and software development on track. The FTLRS system has made many hardware and software changes to improve system accuracy, ranging capability, and ease of operation. The new Potsdam system is showing great results on the tracking. CRL has taken the best of the Keystone network, plus a new 1.5 m telescope and now tracks from LEO to GEO and Lasercom. Finally, the GUTS system is utilizing the MLRO technologies and tailoring them to support the growing number of Japanese satellites including GEO satellites.

Systems in Operation and Going Toward Millimeter Accuracy

A number of systems currently or ones that have been out of action for a period are now back and working towards millimeter accuracy. Simiez has utilized a welcomed international support to greatly improve performance and reliability while SALRO is back after a break with new energy and with an improvement in accuracy and reliability.

The Shanghai SLR system had the P-PET calibration system visit and along with new short ground targets, upgrades to met system, new control and ergonomics they are moving forward to the mm goal. Finally, the Changchung system has undergone many upgrades to hardware and controller as they progress forward.

Technical Issues

In software issues, FTLRS have made many improvements and advancements that support Jason and all missions to LAGEOS in a more productive and efficient way, while SLR2000 shows that the laser light is seen at the end of the tunnel and is positioned to capture that light though thorough testing and simulations

As for hardware issues, the NASA network keeps functioning at the highest levels while paving the way for the SLR2000 through many subsystem/component upgrades. Additionally, MLRS celebrated the people that make MLRS work through dedication and innovation. Finally, the LURE SLR system or HOLLAS or learned that the best way is to do it yourself and are now back better than ever as they get their mount back on-line and operational.

In Summary…

Many upgrades to ten stations and one network are keeping the old productive and improving and the new paving the way for the future but all are striving toward millimeter accuracy. And finally, through diversity, vision, and teamwork, laser ranging remains strong and viable for the future.

 

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Responsible NASA Official: Frank Lemoine
Last Updated: February 23, 2024

 


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