SSCWeb: The New Web-based Satellite Situation Center
Code 632, NASA/Goddard Space Flight Center, Greenbelt MD 20771
1-301-286-7794, Robert.E. McGuire.firstname.lastname@example.org
Raytheon STX, Code 632, NASA/Goddard Space Flight Center, Greenbelt MD 20771
This paper describes the capabilities and implementation of
the Satellite Situation Center's new Web-based interface.
The SSC system includes a database of some 44 missions
maintained with the latest definitive and predictive
ephemerides. SSCWeb simultaneously supports key facility
operations of the NSSDC's Satellite Situation Center and the
ISTP Science Planning and Operations Facility (SPOF) with the
same database and software now available to all users.
SSCWeb supports output of spacecraft locations in many
different coordinate systems and with various field
parameters and geophysical regions as desired. The software
can also list various kinds of conjunctions including region
co-occupancy and radial or magnetic alignments of spacecraft
or spacecraft with ground stations. The interface operates
in two modes (standard and advanced) to support both new or
occasional users along with users needing to tap more complex
capabilities of the codes. The Web interface features an
innovative use of "hidden fields" to allow users to save and
restore query specifications on their local machines without
the need for the server to track their individual "sessions."
Restored and fully Web-based SSC graphics functionality will
be demonstrated, supplementing the powerful listing and
logical query capabilities of this system.
The SSC and SSCWeb are a joint effort of the NASA GSFC Space
Physics Data Facility (software development and project
management), the National Space Science Data Center (SSC
operations staff) and the ISTP SPOF (shared leadership of the
system science design and operation of the current physical
SSC server). SSCWeb may be accessed at this