Author Topic: H-IIB F-7 - HTV-7 - September 22, 2018 (17:52 UTC)  (Read 70177 times)

Offline ChrisGebhardt

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Re: H-IIB F-7 - HTV-7 - September 14, 2018 (20:59 UTC)
« Reply #80 on: 09/14/2018 07:28 pm »
We have a report from a Canadian Space Agency official that HTV-7's launch has been scrubbed for today and a new attempt will be 2 days from now on 17 Sept. local time in Japan.

https://twitter.com/kfacciol/status/1040678178770104322

Quote
Sadly there will be no launch today, with the next attempt no earlier than September 17th. #HTV7

Offline ChrisGebhardt

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Re: H-IIB F-7 - HTV-7 - September 16, 2018 (~20:16 UTC)
« Reply #81 on: 09/14/2018 07:35 pm »
Approximate launch time for a liftoff two days from now on 17 Sept. local time would be approx 05:16 JST, which is 2016 UTC on 16 Sept.

EDIT: This is if the 17 Sept. date is a reference to local time in Japan.  If it's a UTC time reference, than launch would be on 18 Sept. local time and launch time would be about 22-26 minutes earlier.
« Last Edit: 09/14/2018 08:05 pm by ChrisGebhardt »

Offline input~2

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Re: H-IIB F-7 - HTV-7 - September 16, 2018 (~20:16 UTC)
« Reply #82 on: 09/14/2018 07:54 pm »
J7294/18 -  REF AIP SUP 113/18 ITEM 1,2,3 LAUNCH OF H-2B-F7 WAS POSTPONED. ITEM 2.(2) FLT AVOIDANCE AND ITEM 3.3-1(2) UNUSABLE FLIGHT PROCEDURES,ETC. IN FORCE RMK/LAUNCHING DATE WILL BE NOTIFY BY FURTHER RJJJ NOTAM. SFC - UNL, 14 SEP 19:15 2018 UNTIL UFN. CREATED: 14 SEP 19:15 2018

Offline ChrisGebhardt

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Re: H-IIB F-7 - HTV-7 - September 16, 2018 (~20:16 UTC)
« Reply #83 on: 09/14/2018 07:57 pm »
We have a report from a Canadian Space Agency official that HTV-7's launch has been scrubbed for today and a new attempt will be 2 days from now on 17 Sept. local time in Japan.

https://twitter.com/kfacciol/status/1040678178770104322

Quote
Sadly there will be no launch today, with the next attempt no earlier than September 17th. #HTV7

Trying to confirm which time zone the 17 Sept. recycle date is in reference to.  I think it's UTC - which would be 3 days from now.  But could also be reference to local time in Japan, which would be 2 days from now.  Checking.

Offline ChrisGebhardt

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Re: H-IIB F-7 - HTV-7 - September 16, 2018 (~20:16 UTC)
« Reply #84 on: 09/14/2018 08:00 pm »

Online Rondaz

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #85 on: 09/14/2018 08:18 pm »
Japan Postpones Rocket Launch to Station

Mark Garcia September 14, 2018

The Japan Aerospace Exploration Agency (JAXA) has postponed the scheduled launch of a Japanese cargo spacecraft from the Tanegashima Space Center in southern Japan. The unpiloted H-II Transfer Vehicle-7 (HTV-7) is loaded with more than five tons of supplies, water, spare parts and experiments for the crew aboard the International Space Station.

A new launch date has not yet been determined.

Online Steven Pietrobon

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #86 on: 09/14/2018 08:28 pm »
Here's the current state of the vehicle. I'm back off to bed! (We're only half hour ahead of JST).
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline blister

Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #87 on: 09/14/2018 08:43 pm »
A press conference will be held from 6 o'clock on postponement of launch of H-2B Launch Vehicle No. 7.
At NVS, we plan to relay a press conference on postponement using launch trunk.
H-2B Rocket F7 Press Conference on postponement of launch


Offline blister

Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #88 on: 09/14/2018 09:14 pm »
A press conference began. The operation pressure of the valve was lower than the specified value in the operation test of the two-stage liquid oxygen vent valve performed in the countdown operation on the day of launch. Approximate pressure: about 0.33 MPaA Operating pressure: about 0.25 MPaA Re-launch is expected to take more than one week.

« Last Edit: 09/14/2018 09:16 pm by blister »

Offline blister

Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #89 on: 09/14/2018 09:47 pm »
Now


Offline MattBaker

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #90 on: 09/14/2018 09:58 pm »
Re-launch is expected to take more than one week.

That's really a problem with the ISS schedule then.

September 14 20:59:14 - HTV-7 Kounotori-7 launch
September 18 11:25 / ~15:00 - HTV-7 Kounotori-7 capture and berthing (to Harmony nadir) by SSRMS
September 23 - spacewalk (ISS U.S. EVA-52) from Quest airlock (installing new batteries in the ISS P4 Truss 4A Power Channel) [Feustel, Gerst]
September 29 - spacewalk (ISS U.S. EVA-53) from Quest airlock (installing new batteries in the ISS P4 Truss 2A Power Channel) Gerst, Arnold]
October 4  08:19 / 10:50 - Soyuz MS-08 (54S) undocking (from Poisk) and  deorbit burn [Exp 55/56: Artemyev, Feustel,  Arnold]
October 4  11:43 - Soyuz MS-08 (54S) landing [Exp 55/56: Artemyev, Feustel,  Arnold]
October 11  08:40 / 14:44 - Soyuz MS-10 (56S) launch and docking (to Poisk) [Exp 57/58: Ovchinin, Hague]

MS-08's 210 days would end on October 17th, so maybe everything gets pushed back a week? I assume they'd want to do the spacewalks with the current crew assignments, they're trained and briefed on it.

Is there something to be said here about having an exclusive launcher for your spacecraft that hasn't flown a lot and only does every year or so? Or do you think the standard H-IIA is similar enough? I remember that point being thrown in during the delays of the last Delta IV Heavy. Big launcher with neither the history or frequency to become as routine as a controlled explosion of 500 metric tons can be.

Offline ChrisGebhardt

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #91 on: 09/14/2018 10:06 pm »
Re-launch is expected to take more than one week.

That's really a problem with the ISS schedule then.

September 14 20:59:14 - HTV-7 Kounotori-7 launch
September 18 11:25 / ~15:00 - HTV-7 Kounotori-7 capture and berthing (to Harmony nadir) by SSRMS
September 23 - spacewalk (ISS U.S. EVA-52) from Quest airlock (installing new batteries in the ISS P4 Truss 4A Power Channel) [Feustel, Gerst]
September 29 - spacewalk (ISS U.S. EVA-53) from Quest airlock (installing new batteries in the ISS P4 Truss 2A Power Channel) Gerst, Arnold]
October 4  08:19 / 10:50 - Soyuz MS-08 (54S) undocking (from Poisk) and  deorbit burn [Exp 55/56: Artemyev, Feustel,  Arnold]
October 4  11:43 - Soyuz MS-08 (54S) landing [Exp 55/56: Artemyev, Feustel,  Arnold]
October 11  08:40 / 14:44 - Soyuz MS-10 (56S) launch and docking (to Poisk) [Exp 57/58: Ovchinin, Hague]

MS-08's 210 days would end on October 17th, so maybe everything gets pushed back a week? I assume they'd want to do the spacewalks with the current crew assignments, they're trained and briefed on it.

Is there something to be said here about having an exclusive launcher for your spacecraft that hasn't flown a lot and only does every year or so? Or do you think the standard H-IIA is similar enough? I remember that point being thrown in during the delays of the last Delta IV Heavy. Big launcher with neither the history or frequency to become as routine as a controlled explosion of 500 metric tons can be.

First spacewalk was originally scheduled for ~15 days after HTV's launch.  If the delay is just a week to 21 Sept.-ish., that would put first spacewalk around 6 Oct.  So that's not an immediate concern to MS-08's departure just yet.  If it becomes an issue, Alex Gerst (MS-09) is on both spacewalks, and crews do cross-train on some events in case of delays like this.  So I wouldn't expect the Soyuz schedule to change based on HTV-7's launch.

It's not really fair at all to ask this question solely about H-IIB without asking it of all rockets.  Shuttle had major issues (the ET stringers) after 132 flights.  Falcon 9 has had its issues after numerous flights.  Atlas V has had issues that have taken weeks to fix after 70+ flights.  This is rocketry.  Stuff happens on complex systems.

Offline MattBaker

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #92 on: 09/14/2018 10:24 pm »
and crews do cross-train on some events in case of delays like this.  So I wouldn't expect the Soyuz schedule to change based on HTV-7's launch.

I guess Nick Hague's spaceflight experience will start out exciting then, welcome to space lad, here's your suit and Pistol Grip Tool, wanna change batteries? 8)

Drew Feustel would become the most experienced American spacewalker with his next EVA though, would be a nice achievment for him to get that might not happen now.

Offline Galactic Penguin SST

Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #93 on: 09/15/2018 12:03 am »
The problem seems to be a leaking (or sticky) vent release valve linked to the 2nd stage liquid oxygen tank. The rocket will be rolled back to the barn later today.
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Offline yoichi

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Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #94 on: 09/15/2018 07:56 am »

Offline Galactic Penguin SST

Re: H-IIB F-7 - HTV-7 - September 17, 2018
« Reply #95 on: 09/15/2018 10:27 am »
The problem seems to be a leaking (or sticky) vent release valve linked to the 2nd stage liquid oxygen tank. The rocket will be rolled back to the barn later today.

According to MHI in the post-scrub press conference launching within the next week would be "difficult".
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Offline yoichi

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Re: H-IIB F-7 - HTV-7 - September 2018
« Reply #96 on: 09/19/2018 07:43 am »
https://twitter.com/MHI_LS/status/1042317615899668480
MHI Launch Services‏ @MHI_LS 
The launch of H-IIB Launch Vehicle No. 7 has been rescheduled to around 3:15 a.m. on September 22(Sat.) 2018. #H2BF7
16:40 - 2018年9月19日

Offline SciNews

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Re: H-IIB F-7 - HTV-7 - September 21, 2018 (18:15 UTC)
« Reply #97 on: 09/19/2018 08:19 am »
JAXA press release:
Quote
Mitsubishi Heavy Industries, Ltd. (MHI) and Japan Aerospace Exploration Agency (JAXA) have updated launch schedule of the H-IIB Launch Vehicle No. 7(H-IIB F7) which carries aboard the H-II Transfer Vehicle "KOUNOTORI7" (HTV7), the cargo transporter to the International Space Station (ISS). Necessity arose to investigate the H-IIB F7 propulsion system, forcing MHI and JAXA to cancel the launch previously rescheduled for September 15, 2018. MHI and JAXA have taken the course of action necessary to identify and deal with the cause that the investigation revealed.
The corrective measures which ensued from the investigation have completed. Accordingly, H-IIB F7 launch schedule updates go as follows:
Launch Date:   September 22, 2018
Launch Time:   Around 3:15 a.m. (Japan Standard Time, JST) *1
Reserved Launch Period:   September 23 through October 31, 2018 *2
http://global.jaxa.jp/press/2018/09/20180919_h2bf7.html

Online Rondaz

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Re: H-IIB F-7 - HTV-7 - September 21, 2018 (18:15 UTC)
« Reply #98 on: 09/19/2018 02:28 pm »
Japan Reschedules Launch of Station Cargo Mission to Friday

Mark Garcia September 19, 2018

The Japan Aerospace Exploration Agency (JAXA) has rescheduled the launch of a cargo spacecraft from the Tanegashima Space Center in southern Japan to 2:15 p.m. EDT Friday, Sept. 21 (3:15 a.m. Sept. 22 Japan standard time). Live coverage of the launch will begin at 1:45 p.m. on NASA Television and the agency’s website.

The H-II Transfer Vehicle-7 (HTV-7) is loaded with more than five tons of supplies, water, spare parts and experiments for the crew aboard the International Space Station.

NASA also will provide live coverage of the arrival of HTV-7 at the space station Tuesday, Sept. 25 beginning at 6:30 a.m. ET. Capture is scheduled for around 8 a.m. After a break, NASA TV coverage will resume at 10:30 a.m. for spacecraft installation to the space station’s Harmony module.

Offline yoichi

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Re: H-IIB F-7 - HTV-7 - September 22, 2018 (17:52 UTC)
« Reply #99 on: 09/20/2018 07:24 am »
https://twitter.com/MHI_LS/status/1042670260631957511
MHI Launch Services‏ @MHI_LS 
Due to an unfavorable weather forecast for the day before and launch day, the launch of H-IIB Launch Vehicle No. 7 has been rescheduled to around 2:52 a.m. on September 23(Sun.) 2018(JST). #H2BF7
16:02 - 2018年9月20日

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