The Nusantara Lima Satellite (N5 Satellite) was launched into orbit on September 12, 2025, at 8:56 a.m. Jakarta time (September 11, 2025, at 9:56 a.m. Florida time) from Cape Canaveral, Florida, United States, marking a significant milestone in the development of Indonesian satellite technology. Built by Boeing Satellite Systems and launched aboard SpaceX's Falcon 9, the Nusantara Lima Satellite reflects Indonesia's collaboration with leading global partners. This satellite will be a significant milestone in providing high-speed internet services in Indonesia and the ASEAN region. With the successful separation phase of the satellite from the rocket (separation), the N5 Satellite is now entering the next phase, orbital raising, where the satellite moves into orbit.
Looking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7-ton range. Galaxy 33/34 was 7.35 tons and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8-ton satellite lofted to GTO-1500 if it uses hypergolic orbit raising for the difference.
Looking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.
Quote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur
Quote from: Starship_SpaceX on 09/13/2025 04:04 pmQuote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timurWow. That's, like, the heaviest GTO satellite a single-stick Falcon 9 has launched.I understand the heaviest GTO satellite launched by any Falcon rocket in general was EchoStar 24/Jupiter 3 (9.2 metric tons) atop a partially expendable Falcon Heavy, but still. This is incredible.
Quote from: ZachS09 on 09/13/2025 04:09 pmQuote from: Starship_SpaceX on 09/13/2025 04:04 pmQuote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timurWow. That's, like, the heaviest GTO satellite a single-stick Falcon 9 has launched.I understand the heaviest GTO satellite launched by any Falcon rocket in general was EchoStar 24/Jupiter 3 (9.2 metric tons) atop a partially expendable Falcon Heavy, but still. This is incredible.Yes, but in terms of launch energy, the highest should be ViaSat 3 Americas, which weighs 6.4 tons and is launched directly into GEO by a fully expended FH. Although EchoStar 24/Jupiter 3 has entered a transfer orbit higher than GTO, it is still far from GEO.
Quote from: Starship_SpaceX on 09/13/2025 04:04 pmQuote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur7,800 kg makes this the heaviest payload launched into GTO by Falcon 9, and makes it the second heaviest commercial GEO satellite ever behind EchoStar XXIV/Jupiter-3 at 9,200 kg.
Quote from: GewoonLukas_ on 09/13/2025 06:41 pmQuote from: Starship_SpaceX on 09/13/2025 04:04 pmQuote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur7,800 kg makes this the heaviest payload launched into GTO by Falcon 9, and makes it the second heaviest commercial GEO satellite ever behind EchoStar XXIV/Jupiter-3 at 9,200 kg.As I said earlier, the "heaviest to GTO" needs lots of asterisks, because if this was launched on an Ariane to GTO-1500, it'd only weigh 5.8-5.9 tonnes because it'd need less fuel to get to GEO.
Quote from: ZachF on 09/14/2025 11:15 amQuote from: GewoonLukas_ on 09/13/2025 06:41 pmQuote from: Starship_SpaceX on 09/13/2025 04:04 pmQuote from: ZachF on 09/13/2025 12:56 pmLooking at previous GEO launch masses and it's ~2,365m/s deficit, this satellite was probably in the 7.7 tonne range. Galaxy 33/34 was 7.35 tonnes and lofted to GTO-2200.While this is large, however this is only roughly equal to a ~5.8 tonne satellite lofted to GTO-1500 if it uses hypergolic orbit rasing for the difference.The satellite is reported to weigh about 7.8 tons.https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur7,800 kg makes this the heaviest payload launched into GTO by Falcon 9, and makes it the second heaviest commercial GEO satellite ever behind EchoStar XXIV/Jupiter-3 at 9,200 kg.As I said earlier, the "heaviest to GTO" needs lots of asterisks, because if this was launched on an Ariane to GTO-1500, it'd only weigh 5.8-5.9 tonnes because it'd need less fuel to get to GEO.Indeed, some people who don’t know the situation will obviously be confused as to why Nusantara Lima is heavier than Viasat-3, but Viasat-3’s designed communication capacity is 6 times that of the former, or why the heavier Nusantara Lima was not launched using FH.