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Old 11-26-2014, 01:11 PM   #16
Galactic Penguin SST
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Liftoff in less than 4 days time!



Goodies pack coming soon!
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Old 11-27-2014, 06:59 PM   #17
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There are a number of secondary payloads launching along with Hayabusa2 - this one caught my eye - DESPATCH(ARTSAT2)


30kg, 50cm diameter

Good luck JAXA!
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Old 11-29-2014, 02:03 PM   #18
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Thanks to weather in southern Japan, I have at least one more day to prepare for this - liftoff now planned at 04:22:43 UTC on December 1st.
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Old 11-30-2014, 08:25 AM   #19
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Quote:
Originally Posted by Galactic Penguin SST View Post
 Thanks to weather in southern Japan, I have at least one more day to prepare for this - liftoff now planned at 04:22:43 UTC on December 1st.
And ground winds is keeping Hayabusa 2 on the ground for another 2 days - liftoff now planned at 04:22:04 UTC on December 3rd.
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Old 11-30-2014, 10:47 AM   #20
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Quote:
Originally Posted by Galactic Penguin SST View Post
 And ground winds is keeping Hayabusa 2 on the ground for another 2 days - liftoff now planned at 04:22:04 UTC on December 3rd.
How long will this launch window be open? It turns out that if Hayabusa 2 misses this launch window, there are backups next June and December. If some unfortunate events happen and the spacecraft cannot launch in 2015, the next opportunity will be a decade away.
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Old 11-30-2014, 10:09 PM   #21
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December 9th last time I heard.
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Old 12-02-2014, 10:12 AM   #22
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Still working on that goodies pack....hope to release that before rocket rolls-out in a few hours time.

In the mean time....here's a CG of the mission profile:

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Old 12-02-2014, 03:08 PM   #23
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The weather is looking good for launch:

Weather Forecast for Tanegashima Airport, Japan on December 3, 2014 (1 p.m.)

Partly cloudy. High 14C. Winds WNW at 15 to 30 km/h.

TimeTempsDew PointRelative HumidityPrecipSnowCloud coverPressureWindWeather
1 PM14C7C60%0%0%54%1021 hPa21 km/h W Partly cloudy

....and here's the launch sequence:

Launch Sequence:
EventTime [mm:ss]Altitude [km]Inertial speed [km/s]
1.
Liftoff
0:00
0
0.4
2.
Solid rocket booster burnout*
1:39
46
1.6
3.
Solid rocket booster jettison**
1:48
53
1.6
4.
Payload fairing jettison
4:10
137
2.8
5.
1st stage engine (main engine) cutoff (MECO)
6:36
202
5.6
6.
1st and 2nd stages separation
6:44
207
5.6
7.
2nd stage ignition #1 (SEIG-1)
6:50
210
5.6
8.
2nd stage engine cutoff #1 (SECO-1)
11:18
254
7.8
9.
2nd stage ignition #2 (SEIG-2)
1:39:23
250
7.8
10.
2nd stage engine cutoff #2 (SECO-2)
1:43:24
313
11.8
11.
Hayabusa 2 separation
1:47:15
889
11.4
12.
Shi'nen 2 small satellite separation
1:53:55
2867
10.4
13.
DESPATCH small satellite separation
1:58:05
4418
9.7
14.
PROCYCON small satellite separation
2:02:15
6068
9.2

*) Moment of combustion pressure reaching 2% of maximum
**) Thrust strut cutoff


.....and the rocket is now on its way to the launch pad right now!

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Old 12-03-2014, 03:02 AM   #24
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T-1 hour 20 minutes - here's the live broadcast:

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Old 12-03-2014, 04:36 AM   #25
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No-one's watching?

Hayabusa 2 is now in low Earth orbit! One orbit away from a second burn that puts it away from Earth.
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Old 12-03-2014, 04:47 AM   #26
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Great Launch ! Good luck for another ambitious mission !
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Old 12-03-2014, 06:18 AM   #27
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Hayabusa 2 separation confirmed.
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Old 12-03-2014, 06:20 AM   #28
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Quote:
Originally Posted by Galactic Penguin SST View Post
 No-one's watching?

Hayabusa 2 is now in low Earth orbit! One orbit away from a second burn that puts it away from Earth.
I was watching, and of course, listening to this during the launch.
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Old 12-03-2014, 07:33 AM   #29
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Quote:
Originally Posted by Galactic Penguin SST View Post
 No-one's watching?

Hayabusa 2 is now in low Earth orbit! One orbit away from a second burn that puts it away from Earth.
I was! It was just awfully early in The Netherlands
Great launch (beautiful rocket!) and congratulations to JAXA
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Old 12-03-2014, 08:35 AM   #30
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Quote:
Originally Posted by Galactic Penguin SST View Post
 T-1 hour 20 minutes - here's the live broadcast:

Asteroid Explorer "Hayabusa2" Launch Live Broadcast
The launch takes place around 1:09:40 on the broadcast. Here's a direct link, starting at T-10, for convenience.
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