Superbird-B2

Superbird-B2, also known by its pre-launch designation Superbird-4, is a Japanese communications satellite which is operated by SKY Perfect JSAT Group. It was originally built and launched for the Space Communications Corporation, which merged with JSAT in October 2008. It was constructed by Hughes and is based on the HS-601HP satellite bus. Launch occurred on 18 February 2000, at 01:04 GMT. The launch was contracted by Arianespace, and used an Ariane 4 44LP-3 carrier rocket flying from ELA-2 at the Guiana Space Centre.

Superbird-4 → Superbird-B2
NamesSuperbird-4 (1995 to Jul 1997) Superbird-B2 (Jul 1997 onward)
Mission typeCommunication
OperatorSCC
SKY Perfect JSAT Group
COSPAR ID2000-012A
SATCAT no.26095
Mission duration13 years
Spacecraft properties
BusHS-601HP
ManufacturerHughes
Launch mass4,057 kilograms (8,944 lb)
Start of mission
Launch date18 February 2000 (2000-02-18)
RocketAriane 44LP-3
Launch siteKourou ELA-2
ContractorArianespace
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude162° East
 

Satellite description

It is primarily used to transmit what its operators describe as "area information", and provide a backup VSAT system to Japanese local government.

Following its launch and on-orbit testing, it was placed in geostationary orbit at 162° East, from where it provides communications services to Japan. It is equipped with thirty five transponders.

Currently, the J-Alert emergency warning system is broadcast via Superbird-B2.

gollark: They mostly just exploit human social processing stuff rather than magically zapping changes into your brain.
gollark: Advertising is optimized to make you buy/do a thing. It just isn't *that* effective, compared to cognitohazards in fiction.
gollark: They kind of already have, but pretty mild ones.
gollark: There was a buffer or something it needed which didn't seem to exist because of me hackily patching stuff together, so I just assumed 512 bytes was enough.
gollark: There are probably horrible issues in the code I hackily tweaked, but I can't see them and it doesn't cause immediate crashing, so I ignored it.

References
    • Krebs, Gunter. "Superbird 4 (Superbird B2)". Gunter's Space Page. Retrieved 2009-05-02.
    • "Superbird B2". Lyngsat. Retrieved 2009-05-02.
    • McDowell, Jonathan (2000-02-29). "Issue 421". Jonathan's Space Report. Archived from the original on 2011-06-08. Retrieved 2009-05-02.
    • "Superbird-B2". JSAT Corporation. 2008-12-31. Archived from the original on 2009-11-28. Retrieved 2009-05-02.
    • Ray, Justin (2000-02-18). "Ariane 4 rocket launches Japan's Superbird 4". Spaceflight Now. Retrieved 2009-05-02.
    • Ray, Justin (2000-02-18). "Mission Status Center". Ariane Flight V127. Spaceflight Now. Retrieved 2009-05-02.
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