It is possible that there were problems that bedeviled the Angosat-1 satellite that were corrected during fabrication of the Angosat-2, since Angosat-1 contact with ground controllers was lost shortly after the Angosat-1 entered orbit?
https://twitter.com/katlinegrey/status/1230512877322280960Quote from: Katya PavlushchenkoThe production of #AngoSat2, a replacement for AngoSat-1, the contact with which was lost shortly after launch, should be finished in March 2022. In order to meet this deadline, the satellite had been taken away from RSC Energia and given to ISS Reshetnev. https://www.vedomosti.ru/politics/articles/2020/02/18/823343-sputnik-angoli
The production of #AngoSat2, a replacement for AngoSat-1, the contact with which was lost shortly after launch, should be finished in March 2022. In order to meet this deadline, the satellite had been taken away from RSC Energia and given to ISS Reshetnev. https://www.vedomosti.ru/politics/articles/2020/02/18/823343-sputnik-angoli
Orbital Launch no.136 of 2022Angosat-2 | Roscosmos | Oct 12 | 1505 UTC@roscosmos to launch the #Angola's telecom #Angosat2 (replacing Angosat-1) atop its medium-heavy launcher #ProtonM with DM-3 upper stage from Baikonur Cosmodrome in Kazakhstan.https://twitter.com/SpaceIntellige3/status/1580162917755863040
DM-3 and DM-03 are not the same versions.
That's correct. My understanding is that DM3 (without the hyphen) used the RD-58S engine up to 2006 with Proton-K and DM-03 used the RD-58MF engine from 2010 with Proton-M.https://space.skyrocket.de/doc_lau_det/proton-k_blok-dm3.htmhttps://space.skyrocket.de/doc_lau_det/proton-m_blok-dm-03.htm
But RD-58MF is still a distant project and has not flown yet.
Quote from: Nicolas PILLET on 10/13/2022 06:06 amBut RD-58MF is still a distant project and has not flown yet.Do you know what engine DM-03 uses? Is it the same as DM3?