Missions Supported by Laser Ranging
Geodetic Satellites

Remote Sensing Missions

Global Navigation Satellite Systems (GNSS)

Experimental Satellites

Recent News
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https://www.youtube.com/watch?v=Jwqz097N2IY&list=PLIIfsJS7iAuxXGqq0YLAUO_m_06za9vqr
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https://itrf.ign.fr/en/solutions/ITRF2020
The new reference frame realization includes the contributions of all the IAG Geodetic Services (IVS, ILRS, IDS, IGS) and their Analysis Centers and Combination Centers. The ILRS contribution was based on a reprocessing of SLR data to the LAGEOS, LAGEOS-2 & the two Etalon satellites from 1993.0 to 2020.0 and to LAGEOS only from 1983.0 to 1993.0.
The ILRS ASC is working on an ILRS extended version, the SLRF2020, which will include the SLR stations that were not part of the ITRF2020 solution and will provide instructions on how to get the highest accuracy results when implementing this extended model in SLR data analysis.
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We thank our station colleagues Andrea Di Mira, Jens Steinborn for their efforts, and congratulate them on this achievement!
During the current campaign (April 17- 30, 2022) ILRS stations in the Eastern Region of the Indian Ocean (Asia, Australia) will track IRNSS 1C plus IRNSS -1D. ILRS stations in the Western Region of the Indian Ocean (Europe, Africa) will track IRNSS 1C plus IRNSS- 1I. The IRNSS tracking data from the campaigns will be used to assess the performance of these IRNSS satellites, in a similar way to that used to validate the performance of other GNSS constellations such as Galileo.
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The following definitions have been agreed to:
- A pass is defined as all tracking that lasts less than a full satellite period. For geosynchronous satellites, the duration is capped at 24 hours; this is the standard product.
- A pass-segment is another term for a session (interval of continuous data) which is a reflection of how the data was taken at the station and submitted to the data centers. A single pass-segment/session is counted from one H1 to H8.
A pass includes all data taken on a satellite during one transit over the station. The pass-segment is just a magnification of how the data was taken and submitted.
Key Dates:
- June 20, 2022 (Abstract deadline)
- July 25, 2022 (Early registration deadline)
For more information, check the URL for the meeting: www.refag2022.org
Meetings
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