Disclaimer: The following material is being kept online for archival purposes.
Although accurate at the time of publication, it is no longer being updated. The page may contain broken links or outdated information, and parts may not function in current web browsers.
Near Real-Time Data
The ISTP CDHF supports the receipt, processing, and distribution of
near-real time (NRT) data for the WIND and POLAR missions. NRT data is
received from the Generic Data Capture Facility (GDCF) on a dedicated set
of computers in the ISTP CDHF.
NRT Data on the Web
Several sites provide displays of selected parameters from the ISTP Near
Real Time data stream.
Near Real Time Server
(available for authorized ISTP investigators or by request)
The NRT Server System supports the real time distribution of WIND and
POLAR near-real time level-zero data and near-real time key parameter data
(future). Client software is used to connect to the NRT Server System and
request data. Authorized clients will then receive the requested data as
it becomes available. The NRT level-zero and key parameter data is
packetized and sent to the client via a tcp socket connection. The format
of the packets is described in the ISTP Data Format Control
All client routines are written in C and may be obtained from the ISTP
CDHF (istp1.gsfc.nasa.gov) via
See the NRT Client/Server MiniFAQ for additional
NASA Official Responsible for Web Site:
NASA Goddard Space Flight Center, Code 612.3
Greenbelt, MD 20771
Above is background material for archival reference only.