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Initially, LRE (Laser Ranging Equipment) was used to evaluate the accuracy of the initial trajectory determination of the H-2A-202 launch vehicle. Subsequently, the satellite was used to verify SLR station performance, as a target for wide dynamic range of transmitting/receiving tests up to geosynchronous orbit for optical communication and SLR, and to evaluate the air drag model using SLR data.

Retroreflector Array Characteristics:
The array consists of 126 cube corners and 24 plate mirrors. There are two kinds of cube corners (fused silica and BK7). Approximate center of mass correction is 210 mm.

Nation: Japan
Type / Application: Geodesy
Operator: NASDA
Contractors: NASDA
Equipment: Retrorelector Array and plate mirrors
Configuration: 47 cm Sphere
Propulsion: None
Power: None
Mass: 86 kg
Orbit: 272 km × 36215 km, 28.15
Satellite COSPAR Date LS Launch Vehicle Remarks
LRE 2001-038A 29.08.2001 Ta YLP-1 H-2A-202 with VEP 2


  • NSSDC Master Catalog: LRE