[IGSMAIL-5527]: [IGSMAIL-5512]: Real-time observation data used at CODE

[Caissy, Mark]

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IGS Electronic Mail      09 Jan 06:46:17 PST 2007      Message Number 5527
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Author: Mark Caissy

Dear Colleagues,

It's great to hear that CODE is now making use of real-time streams as a
source of data used in the generation of GNSS orbits. I hope that all
AC's will adopt this practice in the future.  The IGS will soon be
initiating a real-time pilot project, with a call for participation
going out in early 2007.  A key objective of the pilot project will be
to have all AC's connected and using the available real-time streams.

I would like to correct a misunderstanding concerning the RTIGS
protocol. The RTIGS data protocol does allow for the inclusion of
GLONASS data, in fact it allows for the inclusion of any type of data.
This was a pillar upon which the protocol was designed.  It is true that
none of the current RTIGS data streams contain GLONASS data, however
this is expected to change during the pilot project.

One objective of the pilot project is to select a standard GNSS data
format for RTIGS activities. This was a recommendation from the
Darmstadt Workshop.  The Real-time Working Group hopes that a standard
GNSS data format can be identified that will meet the future needs of
the real-time IGS and that real-time data streams will eventually become
the basis for many and possibly all IGS products.  RTCM and BINEX have
been mentioned as potential formats for IGS real-time GNSS data streams.
Before a standard format can be selected, it is important that we
identify our real-time GNSS data-format needs (observables, precision,
etc).  Once this is done, we can analyze existing formats (RTCM, BINEX +
others) and propose any changes that are needed.

For more information concerning the activities of the RTIGS working
group and the current extent and performance of the prototype network,
see the RTIGS web page : http://www.rtgnss.org.

Regards,

Mark Caissy
Chair, IGS Real-time Working Group