[S-GD01] Geodesy and Global Geodetic Observing System

[SGD01-12] Developmental status of small-size, low-cost, multi-purpose SLR System: Omni-SLR

*Toshimichi Otsubo¹, Hiroshi Araki², Yusuke Yokota³, Takehiro Matsumoto⁴, Mihoko Kobayashi¹, Kenji Kouno³, Koichiro Doi⁵, Yuichi Aoyama⁵, Tetsu Takashima⁶, Noritomo Yanagimoto⁷ (1.Hitotsubashi University, 2.National Astronomical Observatory, 3.Institute of Industrial Science, University of Tokyo, 4.Japan Aerospace Exploration Agency, 5.National Institute of Polar Research, 6.Vixen Co., Ltd., 7.SoftBank Corp.)

Keywords:Space Geodesy, Satellite Laser Ranging

For a better global coverage of SLR (Satellite Laser Ranging) stations, We have formed an industry-government-academia research group in Japan and have designed and integrated a very minimum system for SLR. The basic concepts are small-size and low-cost in contrast to the majority of the existing SLR stations. As of early 2023, we have not tested actual ranging observations to SLR satellites yet, but we have finished testing its core components such as a laser, a timer and a telescope mount, and we are currently assembling these components and developing software. This project is linked with airbourne/satellite optical communications where high precision optical tracking is essential, and the deployment to the Antarctica is also under consideration.