Go to top of page

Recent News

This page contains all recent ILRS news. For those interested in news specific to satellite missions, please visit our Mission News page.

Map of ILRS stations for which JCET will provide a weather serviceJCET weather service for ILRS network Release Date: 06/13/2018JCET's ILRS ASC Product and Information Server now includes a link to an ILRS network weather forecast service, compiled from The Weather Underground.

ILRW LogoSecond Circular for the 21st International Workshop on Laser Ranging ReleasedRelease Date: 06/06/2018The Space Environment Research Centre (SERC) and the International Laser Ranging Service (ILRS) are actively organizing the 21st International Workshop on Laser Ranging in Canberra, Australia during the week of November 05-09, 2018. The second circular has been released. Registration is now open and attendees are encouraged to submit an abstract for oral and poster sessions.

ILRS logoFirst LARGE Campaign of 2018 is Now OverRelease Date: 05/29/2018The first 2018 LARGE Campaign is now over. A summary report for the campaign is available on the LARGE Activities and Meetings page.

S-NET satellitesFirst successful SLR returns to S-NetRelease Date: 04/16/2018The SLR system in Riga, Latvia was the first ILRS station to obtain returns from one of the four SNET satellites (SNET-4); Yarragadee, Australia also tracked SNET-4 the following day. Riga obtained returns at 21:57 UTC on April 12; Yarragadee's first successful pass was on April 13 at 16:00 UTC. Congratulations to both stations on their persistent efforts to range to these difficult targets.

Jason-2 satelliteTime Transfer by Laser Link (T2L2) mission onboard the Jason-2 satellite is now completedRelease Date: 04/09/2018The Time Transfer by Laser Link (T2L2) mission onboard the Jason-2 satellite is now completed. The T2L2 space instrument, which has been in operation for nearly 10 years, will be turned off on April 09, 2018. Most of the initial objectives for the experiment have been successfully achieved. The Jason-2 satellite remains operational, as does laser ranging to the satellite.

NASA logoNew NASA VLBI Civil Servant position open for applicationsRelease Date: 03/13/2018A new NASA VLBI Civil Servant position is now posted and open for applications. There are two postings, one senior and one mid-level, and applicants should decide which one best fits his/her experience level:

GS-14: http://www.usajobs.gov/GetJob/ViewDetails/493509700

GS-15: http://www.usajobs.gov/GetJob/ViewDetails/493510000

The postings currently close on Tuesday, March 27, 2018. Please note that the job is only open to U.S. citizens and U.S. nationals.

Prof. KozaiThe passing of Dr Yoshihide KozaiRelease Date: 02/15/2018Dr. Yoshihide Kozai passed away on 5 February 2018 at the age of 89. He was very well known in the field of orbit dynamics and also as a leading pioneer of satellite laser ranging since 1960s. He later served as the founding Director General of National Astronomical Observatory of Japan (NAOJ). He had a strong presence even after that - many of us remember his appearance and great speech in the 18th Int. Workshop on Laser Ranging in Fujiyoshida. He will be extremely missed.

CDDIS logoEOSDIS awarded the 2015 Pecora awardRelease Date: 02/14/2018EOSDIS was awarded the 2015 Pecora award. This prestigious award is given to groups that make outstanding contributions toward understanding the Earth by means of remote sensing. The citation highlights the EOSDIS accomplishments in providing an open archive system for a global user community. CDDIS is one of twelve DAACs supporting EOSDIS efforts through the Earth Science Data and Information System (ESDIS) project. Carey Noll, CDDIS Manager, accepted their award certificate from Andy Mitchell, ESDIS Project Manager, and Jeanne Behnke, Deputy Project Manager/Operations, at the 2018 DAAC Managers Meeting.

ILRS logLARGE campaign to begin February 15Release Date: 02/06/2018The first LARGE Campaign for 2018 will run from February 15 to May 15. Each GNSS constellation has identified 4 primary and 4 secondary satellites for tracking:

GLONASS-131, -134, -136, -137
Galileo-102, -202, -209, -210
Compass-G1, -I3, -M3, -MS1
GLONASS -128, -132, -133, -135
Galileo-103, -203, -211, -213
Compass-I5, -IS2, -I6B, -MS2

Please refer to the ILRS priority list on February 15 for the exact priorities. Also note that in April, the list of secondary satellites for Galileo will change as per request from the mission.


During the campaign, the ILRS will provide GLONASS, Galileo, and Compass predictions to the stations for ONLY THESE SELECTED SATELLITES in order to encourage stations to focus on only these targets.

Stations are requested to track the primary satellites over at least two, preferably three, widely spaced segments over the arc, with each segment containing at least two normal points. For the secondary satellites, stations are asked to track at least one segment with at least two normal points over the arc. If some of the primary satellites cannot be tracked due to daylight, weather conditions or other reasons, then we are asking the stations to put more emphasis on the secondary satellites.

ILRW LogoFirst Circular for the 21st International Workshop on Laser Ranging ReleasedRelease Date: 02/02/2018The Space Environment Research Centre (SERC) and the International Laser Ranging Service (ILRS) are pleased to announce that the 21st International Workshop on Laser Ranging will be held in Canberra, Australia during the week of November 04-09, 2018 at the John Curtin School of Medical Research (Australian National University) and Mount Stromlo. The first circular has been released.

Read older news items