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JAXA (& other Japanese) Launch and Discussion Thread


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1 hour ago, Canopus said:

why hopefully? 

I know that they plan to test the H3 rocket by the end of the year, but seems to me it's never really mentioned that this would be the last H-IIB rocket launch (it was clear that this is the last HTV though). H-IIA will still fly so the upper stage, SRB and first stage engine is there; H3 will utilize the same extended tank so it's not a stretch to think they will still be able to fly it again as long as H-IIA remains on the table.

Edited by YNM
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Spoiler

Amateur video of HTV 9 launch :

A look back on HTV program :

 

JAXA-hosted HTV-9 capture and berthing livestream link (docking scheduled on May 25 21:15 JST (UTC +9) / 12:15 (UTC) / 08:15 (UTC -4) :

 

Edited by YNM
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  • 1 month later...
  • 4 weeks later...
  • 4 weeks later...
  • 2 months later...

Looking back on 50 years of Japanese rocket development (since the first successful orbital mission), including the highlighting of the two different lineage of rockets they've (and still being) produced.

 

Edited by YNM
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Hayabusa2 Return Capsule Release, and Hayabusa2 Probe Evasion / Diversion Manouver (TCM-5) livestream :

Hayabusa2 Return Capsule Re-Entry and Landing livestream :

Spoiler

Japanese-language version :

 

Result of TCM-4 :

 

Edited by YNM
Changed links to English livestream version
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25 minutes ago, Ultimate Steve said:

When does it land?

Scheduled on December 6 about 02:00 - 03:10 UTC +9, so should be around midday-ish US time on December 5 (between 14 to 17 hours late from Japan time)

Edited by YNM
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Slides from press conference this afternoon (Japan time) :

Screenshot_20201204-141632_YouTube.jpg

Screenshot_20201204-142014_YouTube.jpg

Recapped schedule :

Screenshot_20201204-142325_YouTube.jpg

Capsule retrieval will only be attempted in daylight, to avoid encounters with wild animals (well, safety reasons).

Edited by YNM
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41 minutes to return capsule release

unknown.png

Streaming started 20 minutes ago

Streaming links : in Japanese, in English

 

EDIT : Probe closest approach with Earth seems to be about 290 km
unknown.png

 

EDIT 2 : Capsule release successful, wires cut confirmed at 4 mins before, release confirmation 5 minutes after release time

 

EDIT 3 : TCM-5 is going to be carried out in 3 bursts.

unknown.png

Edited by YNM
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Hayabusa2 Return Capsule Re-entry and Landing livestream started :

 

EDIT : Re-entry ! (look at the small tailed thing on the left)

unknown.png

Zoomed in :

unknown.png

Soichi Noguchi also took video from the ISS.

 

EDIT 2 : Landing confirmed, although there weren't much indication for it, so still waiting until they do recover it in the morning.

In the meantime, time to plot the crosshairs to another asteroid...

unknown.png

unknown.png

This asteroid is classified in the abnormally-fast-spinning-small-asteroid (under 200 m in radius but more than 2 hrs rotation period) so it'll be visited primarily for such reason.

EDIT 2.5 : They confirmed the Hayabusa2 spacecraft itself is fine - during closest approach it was not able to be contacted due to proximity (they only rely on DSN, not TDRS or such). Made a really loud commotion in the control room, as that means the new extended mission can go forward. 11 years is such a long time ahead !

EDIT 2.75 : Ok now they're showing the video for the new mission. So I guess it's a go for 2031... This is like asking New Horizons to get to Sedna after Pluto or something XD

Edited by YNM
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Spoiler

Extra snippets off the press release earlier this afternoon.

Spoiler

Said press release :

 

Recapped schedules : For the spacecraft

unknown.png

For the capsule :

unknown.png

Re-entry views from the probe and from ISS :

unknown.png

Pictures from the spacecraft

unknown.png

unknown.png

Picture in IR ("vegetation image") :

unknown.png

 

Edited by YNM
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  • 2 weeks later...

JAXA press release about the samples returned by Hayabusa2 from the asteroid 162173 Ryugu, going live on 13:00 UTC+9 (04:00 UTC, 00:00 UTC-4, 20:00 UTC-8 ) approx. an hour from now :

 

Edited by YNM
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  • 2 weeks later...

Good news ! They actually sampled more than 100 mg of materials, what they set out to try to do when designing the mission... they carried back 5.4 grams instead !

 
Also, the story doesn't end here...
 

 

Edited by YNM
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  • 5 weeks later...

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