This month’s issue, June, of GPS world features an interesting article in its innovation column on true GNSS processing within the International GNSS Service. The authors, one of the authors being a PosiTim employee working at ESOC OPS-GN, show the significant developments that have taken place in the high accuracy GNSS area over the last two years. These developments have made the GLONASS orbit and clock products significantly better and they are now approaching the GPS orbit and clock quality.
Also the authors are convinced that the IGS analysis centres are all working on getting their GNSS solutions up and running. In fact, already one additional analysis centre, GFZ from Potsdam, Germany, has started to produce very good combined GNSS products. So the GNSS future looks bright!

So please check out the article on the GPS-world web-site or in the paper version if you have it!

Labels: ESOC, GNSS, GPS World, OPS-GN

After publishing the SVN-49 story on InsideGNSS a lot of things have happened. Most of the discoveries and developments you can read about on InsideGNSS and GPS World.

However, one very interesting new issue was brought to our attention. We were informed that other GPS block IIR and IIR-M satellites may show similar problems as SVN-49 because they use a similar configuration as SVN-49 but of course for a different signal then the L5 signal. So we took a close look at the residuals of all the GPS and GLONASS satellites and discovered that several other GPS block IIR and IIR-M satellites suffer from a similar, albeit much smaller, signal anomaly as observed for SVN-49. Most pronounced anomalies are observed for SVN-55 and SVN-43.

Read more about this in our addition the our InsideGNSS article on InsideGNSS

Labels: GPS, GPS World, Inside GNSS, signal anomaly, SVN49