[IGSMAIL-5239]: L2C Signals Tracked
Dave Stowers
dstowers at anathema.jpl.nasa.gov
Mon Oct 24 11:32:35 PDT 2005
******************************************************************************
IGS Electronic Mail 24 Oct 11:32:36 PDT 2005 Message Number 5239
******************************************************************************
Author: Dave Stowers
Dear Colleagues,
We have successfully tracked the first L2C signal in space on October
21, enabled by the Air Force a day earlier than expected. The signal was
first tracked by a BlackJack receiver at JPL, and a little later by a
small global network of L2C-capable Trimble receivers that were deployed
for this purpose. The signal was enabled only over CONUS for a few hour
period, and was tracked by Trimble NetRS receivers in Hawaii, Alaska,
and Colorado. Additional L2C-capable receivers in South Africa,
Antarctica, and Norway, are on-line and can support global tracking and
real-time monitoring of the new signal if it is enabled beyond CONUS.
A reminder that all of the 30s data tracked at these sites is available
at CDDIS (whether L2C is on or not):
ftp://cddis.gsfc.nasa.gov/pub/gps/data/l2ctest/hourly/2005/
Note that there are currently phase breaks in the PRN 17 data introduced
when L2C is not on, a side effect of automatically determining when the
signal is turned on (see IGSmail-5237 regarding enabling tracking).
A large thanks to staff at JPL, UNAVCO, and the site host organizations
and countries for their efforts in enabling this successful activity.
Best regards,
-dave
More information about the IGSMail
mailing list