Delivered-To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-5239]: L2C Signals Tracked From: Dave Stowers Reply-To: dstowers@jpl.nasa.gov To: igsmail@igscb.jpl.nasa.gov Content-Type: text/plain Organization: JPL/Caltech Date: Mon, 24 Oct 2005 11:32:35 -0700 Message-Id: <1130178755.10752.32.camel@anathema.jpl.nasa.gov> Content-Transfer-Encoding: 7bit Sender: owner-igsmail Precedence: bulk ****************************************************************************** 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