Frédéric, The term 'NORAD ID' is outdated. NORAD has not been involved in the Satellite Catalog (SatCat) since the early seventies of the previous century. Since then several other military organizations have been involved. Currently the 18th Space Defense Squadron (18th SDS) is responsible for the maintenance of the SatCat. Space-Track.org is no more than the interface between the 18th SDS and 'the outside world'. So the 18th SDS assigns the Catalog Numbers and publishes the (non-classified) TLEs via Space-Track.org. As far as I know the International Designators (sometimes also called 'COSPAR numbers') are also assigned by the 18th SDS. When a batch of small satellites are launched, I try to identify them using doppler curve matching. https://twitter.com/HAMSATNL NJ On 25-04-2024 17:09, Frederic Cassaing via Seesat-l wrote: > Dear satellite trackers, > > I am new in this field and I wonder how the link object<->id is > performed. > > As I understand it, for each launch, > - the launching entity informs about the event on its website > (satellites names and goals, sometimes orbits, nav warning...) > - a few hours later, the satellite(s) & R/B are seen by spacetrack > and their TLE is published > - the NORAD id is an internal number attributed by "spacetrack" > > But > - I though the cospar number was given by the Committee on Space > Research, > an international organization. Now I understand from the French > version of > https://en.wikipedia.org/wiki/International_Designator > that since 1963, this number is given by the National Space Science > Data > Center (NSSDC), a NASA branch. > - How is this "primary information" made available ? > There many web sites delivering it, but is there an "official" URL > with Cospar id, name, launch site/date, entity,...? > I tried https://nssdc.gsfc.nasa.gov/nmc/SpacecraftQuery.jsp but only > got > "Exception occurred while getting connection: > oracle.ucp.UniversalConnectionPoolException: > Cannot get Connection from Datasource: > java.sql.SQLRecoverableException: > IO Error: The Network Adapter could not establish the connection" > > - for a batch launch of small sats, how to be sure of the name<->id > link ? > > With my best regards, and congratulations for your enthousiastic work! > -- > Frédéric CASSAING ONERA - The French Aerospace Lab > > _______________________________________________ > Seesat-l mailing list > https://lists.seesatmail.org/mailman/listinfo/seesat-l _______________________________________________ Seesat-l mailing list https://lists.seesatmail.org/mailman/listinfo/seesat-lReceived on Thu Apr 25 2024 - 11:57:32 UTC
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