Author Topic: SpaceX F9 : Nusantara 5 (Lima) : CCSFS SLC-40 : 11/12 September 2025 (01:56 UTC)  (Read 84361 times)

Online catdlr

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Payload deployment coming in a few minutes
A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

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1 minute to deployment
A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

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Deployment coincides with orbital sunrise, allowing the satellite to start generating power from its solar panels once they are deployed.

end of SpaceX broadcast

https://twitter.com/SpaceX/status/1966328050355941445


« Last Edit: 09/12/2025 02:34 am by catdlr »
A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

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A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

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That concludes this NSF live launch coverage.  Stay tuned for further updates.

For NSF, this is Tony.  Have a GReat Day or night wherever you live.
A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

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Full rebroadcast in 4K.  Enjoy

A golden rule from Chris B:  "focus on what is being said, not disparage people who say it."

Offline StraumliBlight

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PASIFIK SATELIT NUSANTARA Linkedin [Sep 12, translated]

Quote
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.

Offline Targeteer

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Heavy satellite?  Short of typical geo transfer orbits by Falcon 9...
65588    PSN N5   2025-205A   PAYLOAD   INDO      285.76min   26.48deg   15735km   251km
« Last Edit: 09/13/2025 01:58 am by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline ZachS09

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The maximum velocity at SECO-2 was 33,065 km/h, or about 9,185 m/s. That’s too slow of a speed for the apogee to be 35,786 kilometers.

The second stage would have to be traveling at least 36,720 km/h (10,200 m/s) by SECO-2.

So Nusantara Lima’s wet mass is clearly between 7 and 8 metric tons.
« Last Edit: 09/13/2025 04:19 pm by ZachS09 »
SECO confirmed. Nominal orbit insertion.

Offline ZachF

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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.
artist, so take opinions expressed above with a well-rendered grain of salt...
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Offline ZachS09

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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.

I wonder how much closer to GEO an expendable Falcon 9 could've deployed Nusantara Lima, assuming its wet mass is exactly 7.7 metric tons. Specifically, using a Minimum Residual Shutdown (MRS) method.
SECO confirmed. Nominal orbit insertion.

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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

Offline ZachS09

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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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

Wow. 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.
« Last Edit: 09/13/2025 04:10 pm by ZachS09 »
SECO confirmed. Nominal orbit insertion.

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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

Wow. 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, which weighs 6.4 tons and is launched directly into GEO by a fully expanded FH. Although EchoStar 24/Jupiter 3 has entered a transfer orbit higher than GTO, it is still far from GEO.

Offline ZachS09

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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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

Wow. 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.

I'm aware of that. My statement was basing it solely off wet mass, not launch energy.
SECO confirmed. Nominal orbit insertion.

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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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

7,800 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.
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Offline ZachS09

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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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

7,800 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.

A form of GTO, technically. This is a subsynchronous transfer orbit.

Side note: in terms of delta-v to GEO, Nusantara Lima has to use 2,359.9 m/s; 569.3 m/s will raise the apogee to 35,786 kilometers first before the circularization and inclination reduction burns.
« Last Edit: 09/13/2025 07:41 pm by ZachS09 »
SECO confirmed. Nominal orbit insertion.

Offline ZachF

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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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

7,800 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.
artist, so take opinions expressed above with a well-rendered grain of salt...
https://www.instagram.com/artzf/

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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

7,800 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.

Offline Abdullah Hussain

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.
The satellite is reported to weigh about 7.8 tons.
https://www.kompas.id/artikel/en-siap-mengangkasa-satelit-nusantara-lima-layani-indonesia-timur

7,800 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.

This i very simple to understand as it's only about weight, Money and need. Like yes, Falcon 9 can carry ViaSat-3 or GOES-U but the payload separation point and orbit kinda suck like on Nusantara Lima but ok if it can be done but downside with possibly less Operational life and probably either PSN guys have not gave money to expend booster or this launch is part of SpaceX missions experimentation they do.
« Last Edit: 09/15/2025 06:05 pm by Abdullah Hussain »

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