Ce second DFH-5 offrira un débit de 300 Gbps. Les suivants pourront aller jusqu'à 1 Tbps.
https://twitter.com/AJ_FI/status/926019432538927104
Dernière édition par David L. le Mar 29 Jan 2019 - 13:06, édité 5 fois
josé a écrit:au fait, cette plateforme , c'est du nouveau ?
bande G et V, remarquable ?
prévoir un débit de 1 Tbps : du jamais vu ?
source déjà citée par David.Lhttp://spacenews.com/china-reveals-cause-of-long-march-5-failure-lunar-sample-mission-to-follow-return-to-flight/ a écrit:the third Long March 5 will carry an experimental telecommunications satellite named Shijian-20, or “Practice-20” in Chinese, based on a new, large DFH-5 satellite platform, similar to the Shijian-18 satellite lost in July.
Zhang Hongtai, president of the China Academy of Space Technology (CAST), a developer and maker of satellites and spacecraft, said in March that the Shijian-20 will increase the country’s high-throughput communications satellite capacity to 300 gigabits per second, up from the current 20 Gbps with the predecessor DFH-4. The DFH-5 platform could eventually provide capacity of 1 terabit per second.
Shijian-20 will also carry newly developed high-thrust ion propulsion developed by the Lanzhou Institute of Physics and test out laser communications. With a payload capacity of over 2,000 kilograms and a total mass of around 7 metric tons, the satellite will be one of the largest sent to geostationary orbit.
montmein69 a écrit:Cette mission comptera certainement plus pour les chinois par la validation de leur lanceur CZ-5 (pour pouvoir lancer Chang'e 4, puis Chang'e 5 et le premier élément de leur station spatiale) que pour la CU, même si bien sûr ils espèrent qu'elle sera mise à poste et assurera les télécommunications (grâce au fonctionnement nominal de leur lanceur).
The China Academy of Launch Vehicle Technology (CALT) has announced piggyback opportunities that indicate the return-to-flight of the Long March 5 is still set for the end of 2018 (1/2) http://calt.spacechina.com/n689/c12629/content.html …
https://spacenews.com/chinas-long-march-5-heavy-lift-rocket-to-fly-again-around-november-in-crucial-test/ …
https://spaceflightnow.com/launch-schedule/ a écrit: Delayed from November 2018. Delayed from January and July. [June 26]