H-IIA-202 F50 : GOSAT-GW : Tanegashima : June 28/29, 2025 (16:33 UTC)

[Galactic Penguin SST]

Rescheduled for June 28, 16:33:03-16:52:00 UTC:

https://twitter.com/mhi_ls/status/1937375845712298416

[randomname]

NGA rocket launching notice for this launch.

241218Z JUN 25
HYDROPAC 1644/25(81,97).
PHILIPPINE SEA.
DNC 12.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   281638Z TO 281724Z, ALTERNATE 1638Z TO 1724Z
   DAILY 29 JUN THRU 30 JUL. IN AREAS BOUND BY:
   A. 29-15.49N 133-49.00E, 29-38.00N 133-03.00E,
      29-15.00N 132-52.00E, 28-54.56N 133-33.77E,
      29-07.00N 133-46.16E, 29-12.92N 133-49.00E.
   B. 26-30.00N 135-28.03E, 26-30.00N 134-56.44E,
      26-18.02N 134-40.00E, 25-54.82N 134-40.00E,
      25-16.00N 135-08.14E, 25-16.00N 135-39.00E,
      25-28.75N 135-56.00E, 25-51.97N 135-56.00E.
   C. 13-44.00N 133-48.00E, 13-45.00N 132-02.00E,
      11-01.00N 132-01.00E, 11-01.00N 133-47.00E.
2. CANCEL THIS MSG 301824Z JUN 25.

[Galactic Penguin SST]

[catdlr]

[sdsds]

Vehicle is at the pad. The weather sure looks like a nice day for a launch.

[jcm]

Is the usual mission book with the launch timeline available? I can't seem to find it anywhere

[William Graham]

Is the usual mission book with the launch timeline available? I can't seem to find it anywhere

I couldn't find a complete copy either, although there are some photographs from a presentation showing slides from it (including the launch timeline) posted earlier in this thread.
https://forum.nasaspaceflight.com/index.php?topic=61562.msg2627992#msg2627992

The post is from last year, but being an SSO mission I wouldn't expect there to have been any significant changes to the timeline.

[catdlr]

https://twitter.com/MHI_LS/status/1938855466681114894

Terminal countdown operation has started. #H2AF50
12:02 AM · Jun 28, 2025
·

[catdlr]

https://twitter.com/MHI_LS/status/1938914244935983344

Terminal countdown operation ongoing. #H2AF50

[catdlr]

https://twitter.com/SpaceIntel101/status/1938940221808332911

Orbital launch no. 140 of 2024 🇯🇵🚀🛰️

GOSAT-GW | MHI |  June 28 | 1633 UTC

@MHI_LS
 to launch GOSAT-GWearth observation🛰️ (Ibuki-GW) on the 50th and last flight of its H-IIA🚀from Tanegashima space center to SSO (Sun-Synchronous Orbit).

[Int.RocketLaunches]

1 hour until launch

[IanO]

Nobody covering this?

On-time liftoff, good first stage flight, fairing sep, currently in 2nd stage flight.

[soyuzu]

Mission success, showing a banner says “Thank you H2A”

[catdlr]

Launch Highlight video:

[catdlr]

https://twitter.com/SpaceIntel101/status/1939034468523876505

[ZachS09]

Nobody covering this?

On-time liftoff, good first stage flight, fairing sep, currently in 2nd stage flight.

Where is everybody nowadays?

[catdlr]

Nobody covering this?

On-time liftoff, good first stage flight, fairing sep, currently in 2nd stage flight.

Where is everybody nowadays?

FutureSpaceTourist has been away for over a month, possibly for a job assignment. That leaves me, and I'm providing 24/7 care for a dementia patient, which I can only do when that person is asleep or watching TV. That leaves the mods of this section, and they don’t have the time. I've been trying to recruit and train, but not everyone is willing to commit. Like today, when I'm not available during the launch, I try to backfill with what I can.

(Tired) Tony

[ZachS09]

Nobody covering this?

On-time liftoff, good first stage flight, fairing sep, currently in 2nd stage flight.

Where is everybody nowadays?

FutureSpaceTourist has been away for over a month, possibly for a job assignment. That leaves me, and I'm providing 24/7 care for a dementia patient, which I can only do when that person is asleep or watching TV. That leaves the mods of this section, and they don’t have the time. I've been trying to recruit and train, but not everyone is willing to commit. Like today, when I'm not available during the launch, I try to backfill with what I can.

(Tired) Tony

It’s fine. Do what’s most important.

[sdsds]

https://global.jaxa.jp/press/2025/06/20250629-1_e.html

June 29, 2025 (JST)
 The Global Observing SATellite for Greenhouse gases and Water cycle "IBUKI GW" (GOSAT-GW) was successfully launched on the H-IIA Launch Vehicle No. 50 from the Tanegashima Space Center at 1:33:03 on June 29, 2025 (JST).
 The full deployment of its solar array paddles was confirmed by telemetry data received from "IBUKI GW" (GOSAT-GW) at the JAXA Mingenew Station in Australia at 1:51 on the same day (JST).
 Following this, telemetry data from "IBUKI GW" (GOSAT-GW) was received at the Troll　Satellite Station in Antarctica at 2:12 (JST), and it was confirmed that "IBUKI GW" (GOSAT-GW) is now in nominal condition with Sun Acquisition Mode.

[zubenelgenubi]

Third successful orbital launch worldwide of four on June 28 UTC! 🌐