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
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
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
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
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.
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.
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
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
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
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
QuoteSeen 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
Anybody want to translate?
Quote from: FutureSpaceTourist on 07/30/2017 04:27 pmQuoteSeen 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_TF1So 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.
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.
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.
Sounding rocket "MOMO" was launched on July 30th.The rocket was successfully launched but didn't reach Karman line.