Subject: [IGSMAIL-6133]: New GPS + GIOVE Real-Time Clock Product
From: <[email-masked]>
To: <[email-masked]>
Cc: <[email-masked]>, <[email-masked]>, <[email-masked]>
Date: Mon, 19 Apr 2010 10:23:51 +0200

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IGS Electronic Mail      19 Apr 01:24:03 PDT 2010      Message Number 6133
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Author: Andri Hauschild

Dear IGS Colleagues,

We would like to inform you that the real-time orbit and clock products from DLR/GSOC are now freely available via ftp and also as real-time data streams from an NTRIP-caster. We
offer two different products: The first is a GPS-only real-time orbit and clock product produced by GSOC's REal-TIme CLock Estimation (RETICLE) system. RETICLE estimates clock
offset corrections, which are consistent with the iono-free P1P2-combination, based on the most recent IGU predicted orbits. These products are  submitted to the IGS real-time
pilot project and typically achieve an accuracy better than 0.3 ns (10 cm) compared to the IGS Rapid clocks.

The second product is a combined GPS+GIOVE real-time orbit and clock product. The predicted GIOVE-A and GIOVE-B orbits are computed by TUM/IAPG based on data from the COperative
Network for Giove Observation (CONGO). The real-time clock corrections for the GIOVE satellites are computed from the iono-free combination of observations from the E1-L1-E2 and
E5a frequencies. Currently, the orbit errors of the predicted GIOVE orbits are typically less than 1.5 m and the real-time clock errors are in the order of several decimeters.

The products can be accessed from an FTP-server, where the latest SP3-file is provided with 5 min latency. Files are retained for one week. The FTP-Server can be accessed as
follows:

Server : ftp.gsoc.dlr.de
User   : reticle
Passwd : getReticle

In addition to the ftp-access, RETICLE also offers real-time data streams via the dedicated NTRIP-Caster "gnss.gsoc.dlr.de:2101". Streams are offered in RTCM3 and ASCII-SP3
format. The latency of the data streams is approximately 7 secs.

Please note that these products are generated on a best-effort basis and there is no guarantee for the performance and availability of the products!

We hope that you find these new products useful. For questions or access information to the NTRIP-streams please contact andre.hauschild @ dlr.de.

Best regards,

Andri Hauschild (DLR/GSOC)
Peter Steigenberger (TUM/IAPG)
Oliver Montenbruck (DLR/GSOC)

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        Andri Hauschild
 __/|__ German Aerospace Center (DLR)   phone:  +49-(0)8153-28-2491
/_/_/_/ GSOC Space Flight Technology    fax:    +49-(0)8153-28-1450
  |/    GNSS Technology & Navigation    e-mail: [email-masked]
        D-82234 Wessling, Germany
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