[time-nuts] Time transfer, internationally before GPS

paul swed paulswedb at gmail.com
Wed Mar 5 08:27:55 EST 2014


Tom
About 18-22 years ago I had a surplus timation receiver. Of course it did
not have satellites to work with. Have to say at the time I wasn't smart
enough to know what to do with it and you guessed it. Its in some dump some
place
Regards
Paul


On Wed, Mar 5, 2014 at 3:38 AM, Tom Van Baak <tvb at leapsecond.com> wrote:

> > I think there were a couple of steps in between things like time-mation
> > satellites and such precursors to GPS. But I believe that CS references
> > were trucked around for a long time.
> > Regards
> > Paul
> > WB8TSL
>
> Hi Paul,
>
> I'm glad you know about Timation. At some point every one who plays with
> GPS should take a quick look back. Here is some light reading. If nothing
> else, read the Origins of GPS paper (GPS World, u-blox) and the NRL GPS
> Bibliography.
>
>
> TIMATION - a GPS Predecessor Program
> https://directory.eoportal.org/web/eoportal/satellite-missions/t/timation
>
>
> First GPS NAVSTAR Satellite Goes on Display
>
> http://www.nrl.navy.mil/media/news-releases/2013/first-gps-navstar-satellite-goes-on-display
> http://www.nrl.navy.mil/PressReleases/2013/25-13r_NTS-2_1620x2649.jpg(worth every pixel)
>
>
> The Origins of GPS, and the Pioneers Who Launched the System
> https://www.u-blox.com/images/stories/the_origins_of_gps.pdf
> http://gpsworld.com/origins-gps-part-1/
> http://gpsworld.com/origins-gps-part-2-fighting-survive/
>
>
> Initial Results of the NAVSTAR GPS NTS-2
> http://tycho.usno.navy.mil/ptti/1977papers/Vol%2009_13.pdf (USNO copy)
> http://leapsecond.com/history/1978-PTTI-v9-NTS-2.pdf (high-res from
> original)
> http://leapsecond.com/history/Ashby-Relativity.htm
> http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA058591
> http://www.dtic.mil/dtic/tr/fulltext/u2/a058591.pdf
>
>
> NRL GPS Bibliography
> http://www.nrl.navy.mil/content_images/MR8988.pdf (46.0 MB)
> (An Annotated Bibliography of the Origin and Development of the Global
> Positioning System at the Naval Research Laboratory)
>
> http://www.gpsdeclassified.com/wp-content/uploads/2013/08/NRL_GPS_Bibliography-web.pdf(5.5 MB)
>
>
> /tvb
>
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