Minutes for Space, Satellite, Ground Systems (SSGS) working group. (Document space/00-03-03.doc) Denver Mar 7, 2000 Attendees William Branch CSC wbranch@csc.com Jim Wetherbee Altair Aerospace Corp jimw@altaira.com Craig Campbell DND (Canada) wc.campbell.@iccs.debbs.ndqh.dnd.ca Claudia Woods Altair Aerospace Corp cwoods@altaira.com Fred Hellrich Naval Research Lab hellrich@nest.nrl.navy.mil Alan Olsen The Aerospace Corp alan.d.olson@aero.org Hal Peterson OMG hal_peterson@omg.org Adrian Hooke NASA-JPL adrian.hooke@jpl.nasa.gov Dan Mock Raytheon dmock@ftw.rsc.raytheon.com Vern E. Slonaker Raytheon veslon@ftw.rsc.raytheon.com Bill Wood CMU/SEI wgw@sei.cmu.com Minutes The SSGS had a very good meeting on Monday March 6th from 0900-1200. There were eleven attendees, mostly new members of the OMG. Notable in the audience was the Associate Director of Space Systems at the Naval Research Laboratory as well as a member of one of the CCSDS committee panels and the manager of the Space Mission Operations Standardization Program NASA Space Operations Management Office (SOMO). The meeting started with brief introductions and an overview of the SSGS given by Jim Wetherbee. A short discussion on the Ground Systems Architecture Workshop (GSAW) followed. GSAW, who had their last meeting in late February, focused a part of their effort on COTS products, as well as some efforts towards standardization in space applications. Next was a presentation from Don Mock of Raytheon discussing the Joint Tactical Radio System (JTRS) (see c4i/00-03-04). The JTRS architecture is a CORBA based architecture in a multi-processor embedded solution whose function is to control and transmit multiple radio signals modulated through a variety of waveforms (downloadable). The CORBA architecture is used for the purpose of being able to easily control processes, be able to add new software, and to be able to easily adjust to new hardware that is introduced. It is also important to note that the architecture, at this time, does not support CORBA based communications outside of the radio (i.e. networking of the radios). The next presenter was Adrian Hooke of JPL who outlined the organization of the Consultative Committee for Space Data Systems (CCSDS) which is contained under ISO committee 20, subcommittee 13. The CCSDS is a well-established international organization that has done great work in the area of Space to Ground link communications and Control Center to Ground Station communications. The CCSDS data format and protocol has been used throughout the world in hundreds of applications. The CCSDS is also currently supporting FTP and TCPIP protocols communications. For more details, please consult the presentation (space/00-03-04.ppt). Adrian also suggested that the OMG might be a good fit for some of the other activities of the CCSDS. A discussion of the responses to the SSGS RFI followed. Currently, there are eleven responses to the RFI. There are still a number of members of the community still wanting to respond, and therefore, the RFI response data has been extended to May 22, 2000. The responses were summarized by Jim Wetherbee (with lots of help from Claudia Woods). Each of the RFI questions were presented with a summarized response attached. The slides that were presented can be found at (space/00-03-05.ppt). Some very god discussions resulted, summarized with the following points : ? Half of the responders have investigated or are using CORBA in their space application ? All responders believe that CORBA is applicable to many areas in space applications ? Of the six areas presented, most of the responders think initial concentration should be in the Functional/Operational Area, Common Services Area, and the Satellite Communications Area ? In the Functional/Operational Area, most respondents think that Data Acquisition is an important and feasible area to standardize. ? Many responses looked out of context (whether the responder did not understand the question or did not have the expertise to respond to the question). This last point is of some concern. A more thorough review of the RFI responses should be performed, and the start of an overall architecture outlining some of the different areas to concentrate upon must be performed in the near future. There is an effort to have an SSGS Working Group meeting in the Washington area in late March to discuss these issues. We will keep you posted. The meeting, by this time had run over into lunch, and therefore a second meeting later in the week was set. Bill Branch reviewed the start of a Security RFI (see space/00-03-06.ppt). This RFI will be used to provide requirements to the OMG Security PSIG, to ensure that the security requirements of the space community are being addressed. The SSGS is also beginning the process for becoming a Domain Task Force in June at Oslo. A Mission Statement, a RoadMap, and a draft SSGS Organization paper will be required for this meeting. We are also hoping to shorten the name to the Space Domain Task Force at this meeting. Any inputs would be greatly appreciated. If you have any questions please consult Jim Wetherbee (jimw@altaira.com) or Bill Branch (wbranch@csc.com), co-chairs of the SSGS.