Welcome

photoalt

NGSLR Greenbelt, MD

Highlights

NGSLR Celebrating 50 Years of Satellite Laser Ranging at NASA Goddard Space Flight CenterRelease Date: 08/28/2014In a field near Goddard 50 years ago this October, the first successful Satellite Laser Ranging (SLR) measurements were taken, ushering in a new era in the science of measuring the Earth.

Read more

workshop logo ITRF2013Release Date: 08/25/2014The ILRS Analysis Working Group (AWG) is finishing its contribution to the development of the next realization of the International Terrestrial Reference Frame (ITRF2013). Preliminary solution has been delivered to the IERS -- and final solution will be delivered by September.

workshop logo 19th International Workshop on Laser Ranging - Celebrating 50 years of SLR Release Date: 07/10/2014The National Aeronautics and Space Administration (NASA), along with the Smithsonian Astrophysical Observatory, and the International Laser Ranging Service (ILRS), are pleased to announce that the 19th International Workshop on Laser Ranging will be held in Annapolis Maryland during the week of October 27-31, 2014 at the Historic Inns of Annapolis.

October 31, 2014 will mark the 50th anniversary of the first successful SLR measurement, conducted at what is now the Goddard Geophysical and Astronomical Observatory (GGAO). The theme for this workshop, "Celebrating 50 Years of SLR: Remembering the Past and Planning for the Future" will allow us to look back on our many accomplishments and present plans for future advances in SLR technology and science.

Visit the workshop website for more information at:

http://ilrs.gsfc.nasa.gov/ilrw19/

The Russian BLITS nanosatellite has collided with a piece of space debris Release Date: 02/28/2013 On January 22, 2013, a collision happened between the BLITS passive laser nanosatellite and a space debris fragment. As a result, an abrupt change occurred of the BLITS orbit parameters (a decrease of the orbiting period). Besides this, as can be seen from the Altay SLR station photometrical observation results, the BLITS spin period has changed from 5.6 sec before collision to 2.1 sec after collision.

Currently, additional observations are made to determine the reasonability of continuing the BLITS observation campaign.

This information was sent to the ILRS by mission contacts in Russia (SRI for Precision Instrument Engineering).

More news...