Author Topic: Interstellar Technologies  (Read 174971 times)

Online Steven Pietrobon

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Re: Interstellar Technologies
« Reply #80 on: 07/30/2017 07:41 am »
Here's the view from NVS. I don't think they saw much!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online Steven Pietrobon

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Re: Interstellar Technologies
« Reply #81 on: 07/30/2017 07:41 am »
Anybody want to translate?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online Steven Pietrobon

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Re: Interstellar Technologies
« Reply #82 on: 07/30/2017 07:46 am »
Interstellar Technologies web cast has ended. NVS still going.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline savuporo

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Re: Interstellar Technologies
« Reply #83 on: 07/30/2017 07:49 am »
Orion - the first and only manned not-too-deep-space craft

Online FutureSpaceTourist

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Re: Interstellar Technologies
« Reply #84 on: 07/30/2017 07:59 am »
Translation is not great but I think the meaning is clear enough. Flew for about 80s so that’s a decent amount of time before telemetry was lost. Hopefully they have a lot of data on how well it performed to that point.

Quote
MOMOは機体の姿勢,位置,速度,機体搭載センサーの情報を電波を使って常時地上の管制室へ送るテレメトリと呼ばれる仕組みを備えています。管制ではこの情報から機体が予定した領域内を飛んでいるか?危険な場所に落ちないか?を判断しています。(続く) #MOMO_FT1

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MOMO has a mechanism called telemetry attitude, position, speed, aircraft equipped with sensors using the radio at all times to the control room on the ground send information. Flying in the area planned from aircraft in the air traffic control? Are you sure you do not fall into a dangerous place? Has been determined. (Continued) #MOMO_FT1

https://twitter.com/natsuroke/status/891566862156185600

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今回の打ち上げでは、エンジン点火・離床から約80秒後にこのテレメトリの通信が途絶しました。このため機体の位置及び落下位置が把握できなく恐れがあるためエンジンを緊急停止するコマンドを送信し、警戒区域内に機体を落下させました。着水位置は沖合約8kmと見られます。 #MOMO_TF1

Quote
With the launch of this has cut off this telemetry communication about 80 seconds after engine ignition and mobilization. Because of this and sent for could no longer understand the aircraft's position and the position the engine emergency stop command, made aircraft falling within the warning area. Landing positions are seen as about 8 km off the coast. #MOMO_TF1

https://twitter.com/natsuroke/status/891568200499863552
« Last Edit: 07/30/2017 08:03 am by FutureSpaceTourist »

Offline john smith 19

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Re: Interstellar Technologies
« Reply #85 on: 07/30/2017 08:56 am »
Translation is not great but I think the meaning is clear enough. Flew for about 80s so that’s a decent amount of time before telemetry was lost. Hopefully they have a lot of data on how well it performed to that point.
Indeed. Let's remember historically ELV's have a 50/50 chance of a successful first flight and the first 3 F1 flights were not successful.

It looked like lousy weather for a launch, but maybe it looked worse than it was IE bad visibility but light winds and no lightning, which are the real trouble makers in a launch.

On the upside isn't 80secs close to stage separation?  For a first flight that should be quite useful, provided they can identify the root cause. Also the translation implies the vehicle self terminated, without a range safety receiver on board. That may sound trivial but those are specialist devices and quite expensive for what they do.   Not needing to carry one disproportionately lowers the fixed costs of a small vehicle, which is a good thing if you want to make this vehicle profitable.

I hope they assess the data and use it to drive the next copy of the vehicle.
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. T&C apply. Trust nothing. Run your own #s "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Offline savuporo

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Re: Interstellar Technologies
« Reply #86 on: 07/30/2017 04:20 pm »
Some articles out now, no new detail

http://www.japantimes.co.jp/news/2017/07/30/business/tech/launch-private-rocket-backed-horie-fails-off-hokkaido/

Quote
The launch of what would have been Japan’s first privately developed rocket to reach outer space failed Sunday off Hokkaido after telemetry was lost, forcing it to be aborted, the Hokkaido-based developer said.

Officials from Interstellar Technologies Inc., founded by former Livedoor Co. President Takafumi Horie, said the 10-meter-long Momo rocket was aborted after communications with the rocket’s telemetry system failed about 80 seconds after liftoff. The rocket was launched from the town of Taiki, on the island’s south coast.

The rocket fell into the Pacific Ocean about 8 km offshore after its engine was halted, they said.
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Online FutureSpaceTourist

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Re: Interstellar Technologies
« Reply #87 on: 07/30/2017 04:27 pm »
Quote
7月30日16時31分に打ち上げられたMOMO 1号機は、約66秒間の飛翔の後、テレメトリ途絶のため管制室から送られたエンジン緊急停止コマンドにより飛行を中断し、沖合約6.5kmの警戒海域内に落下したと見られます。(20:04更新) #MOMO_TF1

https://twitter.com/natsuroke/status/891615562329083905

Quote
Seen as a MOMO 1 rocket was launched in the 7/30 16:31 the engine emergency stop command sent from the control room after 66 seconds of telemetry disruption for suspends flight, fell within the warning area 6.5 kilometers off the coast. (20:04 Update) #MOMO_TF1


Quote
今回はエンジン点火・離床から約66秒後にこのテレメトリの通信が途絶しました。このため機体の位置及び落下位置を把握できなく恐れがあるためエンジン緊急停止コマンドを送信し、警戒区域内に機体を落下させました。着水位置は沖合約6.5kmと見られます。(20:06更新) #MOMO_TF1

https://twitter.com/natsuroke/status/891566862156185600

Quote
I was cut off this telemetry communication about 66 seconds after engine ignition and mobilization. Because of this and send engine emergency stop command can no longer determine the aircraft's position and position, there is fear, in the exclusion zone has been falling aircraft. Landing position is seen as 6.5 kilometers off the coast. (20:06 Update) #MOMO_TF1

Offline john smith 19

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Re: Interstellar Technologies
« Reply #88 on: 07/30/2017 07:57 pm »

Quote
Seen as a MOMO 1 rocket was launched in the 7/30 16:31 the engine emergency stop command sent from the control room after 66 seconds of telemetry disruption for suspends flight, fell within the warning area 6.5 kilometers off the coast. (20:04 Update) #MOMO_TF1
So engine shutdown was by radio command rather than on board software?
It also suggests engine cutoff shut off power, which seems odd, like on board power was being generated from the engine, rather than from a battery. 

TBH this sounds like quite a good idea, depending on the trade off between generator mass and battery mass, with a small battery to run between switching to internal power and engine start.
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. T&C apply. Trust nothing. Run your own #s "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Online catdlr

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Re: Interstellar Technologies
« Reply #89 on: 07/30/2017 08:47 pm »
additional videos (onboard) from NHK News

https://www3.nhk.or.jp/nhkworld/en/news/20170730_17/
Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

Offline Glom

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Re: Interstellar Technologies
« Reply #90 on: 07/30/2017 10:06 pm »


Anybody want to translate?

Well I'm net yet good enough to translate much, but I can at least recognise the very beginning as the company name.

インタステラテクノロジズ
I n ta su te ra te ku no ro ji zu

So if you see some Japanese writing and see that phrase, you know that it's about Interstellar Technologies.

Offline russianhalo117

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Re: Interstellar Technologies
« Reply #91 on: 07/31/2017 02:06 am »

Quote
Seen as a MOMO 1 rocket was launched in the 7/30 16:31 the engine emergency stop command sent from the control room after 66 seconds of telemetry disruption for suspends flight, fell within the warning area 6.5 kilometers off the coast. (20:04 Update) #MOMO_TF1
So engine shutdown was by radio command rather than on board software?
It also suggests engine cutoff shut off power, which seems odd, like on board power was being generated from the engine, rather than from a battery. 

TBH this sounds like quite a good idea, depending on the trade off between generator mass and battery mass, with a small battery to run between switching to internal power and engine start.
The flight was terminated because the rocket stopped transmitting so onboard footage and GNC data was lost shortly before ground issued thrust and flight termination.  Your theory is unlikely based on the available data on the rocket. Also the receiver on the rocket worked because it was a separate antenna and box rather than combined transceiver unit like most sounding rockets these days.

Offline savuporo

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Re: Interstellar Technologies
« Reply #92 on: 07/31/2017 02:21 am »
Two clips with the same views as NHK was showing :





Seems like they also showed their concept for the orbital version at press conference, it's visible at the right corner of the table.


https://twitter.com/nvslive/status/891835881677508608
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Offline savuporo

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Re: Interstellar Technologies
« Reply #93 on: 07/31/2017 02:26 am »
If you play the first video slowly it looks like there is some sort of mechanical deformation event that happens split second before video drops out.

00:45 - 46

« Last Edit: 07/31/2017 02:32 am by savuporo »
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Online Steven Pietrobon

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Re: Interstellar Technologies
« Reply #94 on: 07/31/2017 07:18 am »
If you play the first video slowly it looks like there is some sort of mechanical deformation event that happens split second before video drops out.

That bending could be just a video artefact. However, this might show the camera being ripped off, perhaps due to the vehicle losing control. The vehicle does appear to be rolling, probably not a good thing in a liquid fuelled rocket, as the propellant would centrifuge to the walls, changing the centre of gravity and possibly sending the vehicle into a flat spin.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online FutureSpaceTourist

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Offline yoichi

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Re: Interstellar Technologies
« Reply #96 on: 08/01/2017 09:31 am »












Offline Arthur777

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Re: Interstellar Technologies
« Reply #97 on: 08/02/2017 08:49 am »
Hi guys. :)

Thank you for tracking us!

As everyone here knows, we lost a signal after 66 second of flight.
In the news, it states we sent an abort signal and we did.
But most probably before we sent the command, it would have been shut down by it self.

We are still under investigation of the root cause of this event.
We have some idea on what has happend but still under discussion.
Also, the team are exhausted from the launch schedule which we used up all the windows.
 
Anyway, we got a valuable data from the rocket which can lead to 2nd MOMO.
We are planning to launch it again by end of this year with the improvement and hopefully, the next launch will be in outer space. 8)

Stay tuned!

Offline john smith 19

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Re: Interstellar Technologies
« Reply #98 on: 08/02/2017 10:25 am »
As everyone here knows, we lost a signal after 66 second of flight.
In the news, it states we sent an abort signal and we did.
But most probably before we sent the command, it would have been shut down by it self.
Interesting. An on board FTS should simplify future ground operations.

Quote from: Arthur777
We are still under investigation of the root cause of this event.
We have some idea on what has happend but still under discussion.
Good luck with a speedy resolution and RTF.
Quote from: Arthur777
Also, the team are exhausted from the launch schedule which we used up all the windows.
The weather during launch looked very bad.  :(
 
Quote from: Arthur777
Anyway, we got a valuable data from the rocket which can lead to 2nd MOMO.
We are planning to launch it again by end of this year with the improvement and hopefully, the next launch will be in outer space. 8)
Data is the most valuable result from any early test launch.

66secs this time.

Next time...??
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. T&C apply. Trust nothing. Run your own #s "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Online FutureSpaceTourist

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Re: Interstellar Technologies
« Reply #99 on: 08/03/2017 06:10 pm »
Quote
Sounding rocket "MOMO" was launched on July 30th.
The rocket was successfully launched but didn't reach Karman line.

https://twitter.com/natsuroke/status/893167090491731968

Tags: rocket 
 

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