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Jump to: Mission Objectives, Mission Instrumentation, Mission Parameters, Additional Information

Mission Photos:

Courtesy of IPIE

Mission Objectives:

Larets is designed to address scientific and applied problems in the interests of geodesy and geodynamics. The LARETS mission is a next stage in low-target-error laser satellite design optimization, started with the WESTPAC mission. SLR tracking is the single data source for orbit determination

Mission Instrumentation:

Larets has the following instrumentation onboard:

  • 60 prism corner cube retroreflectors
Mission Parameters:
Sponsor: Russia
Coordinator IPIE
Expected Life: 6 Months
Primary Applications:  
Primary SLR Applications:  
COSPAR ID: 0304206
SIC Code: 5557
Satellite Catalog (NORAD) Number: 27944
Launch Date: September 27 2003
Satellite Diameter: 24 cm
Inclination: 98.204
Eccentricity: 0.0002
Altitude 691 km
Weight: 23.28 kg

Additional information:


  • Pearlman, M., Arnold, D., Davis, M., et al. (2019), "Laser geodetic satellites: a high-accuracy scientific tool", J. Geodesy, 93(11), pp. 2181-2194, DOI: 10.1007/s00190-019-01228-y
  • Bloßfeld, M., Rudenko, S., Kehm, A. et al. (2018), "Consistent estimation of geodetic parameters from SLR satellite constellation measurements", J. Geodesy, 92(9), pp. 1003-1021, DOI: 10.1007/s00190-018-1166-7
  • Sosnica, K., Jäggi, A., Meyer, U. et al. (2015), "Time variable Earth's gravity field from SLR satellites", J. Geodesy, 89(10), pp. 945-960, DOI: 10.1007/s00190-015-0825-1
  • Kucharski, D., Lim, H.C., Kirchner, G. and F. Koidl (2013), "Spin parameters of Low Earth Orbiting satellites Larets and Stella determined from Satellite Laser Ranging data", Adv. Space Res., 53(1), pp. 90-96, DOI: 10.1016/j.asr.2013.10.020
  • Burmistrov, V.B., Parkhomenko, N.N., Shargorodsky, V.D. and V.P. Vasiliev (2004), "REFLECTOR, LARETS and METEOR-3M(1) what did we learn from tracking campaign results", Proceedings of the 14th International Workshop on Laser Ranging, San Fernando, Spain, June 7-11, 2004,