Lancering HTV-7 vanavond 14-9
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|Placed by: Roland on 14-09-18 13:26 | E-mail: zie(at)ledenafdeling.drra|
H-IIB 304 | Kounotori 7 (HTV-7)
T-0: September 14, 2018 20:59:14 UTC
September 14, 2018 20:59:14 UTC
Osaki Y LP2, Tanegashima, Japan
Uncrewed cargo resupply mission to International Space Station.
|| Reaction of: Roland on 14-09-18 22:26 | E-mail: cb19mc127(at)yahoo.com|
Due to an unfavorable weather forecast for the launch day, Mitsubishi Heavy Industries, Ltd. (MHI) and Japan Aerospace Exploration Agency (JAXA) have postponed the launch 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) from the JAXA Tanegashima Space Center. The launch was rescheduled for September 14, 2018. Below is the updated schedule.
MHI and JAXA will consider the weather forecast for the coming days and determine if the updated launch date is available.
Launch Date: September 15, 2018
Launch Time: around 6:00 a.m. (Japan Standard Time, JST) *1
Reserved Launch Period: September 16 through October 31, 2018 *2
|| Reaction of: Roland on 15-09-18 20:10 | E-mail: zie(at)ledenafdeling.drra|
September 15, 2018 (JST)
Mitsubishi Heavy Industries, Ltd.
National Research and Development Agency
Japan Aerospace Exploration Agency (JAXA)
Mitsubishi Heavy Industries, Ltd. and Japan Aerospace Exploration Agency (JAXA) have cancelled launch of the H-IIB Launch Vehicle No. 7(H-IIB F7) with aboard the H-II Transfer Vehicle "KOUNOTORI7" (HTV7), the cargo transporter to the International Space Station (ISS). The cancellation is because additional investigation became necessary of the H-IIB F7 propulsion system. The launch was scheduled for September 15, 2018, from the JAXA Tanegashima Space Center.
Launch schedule updates will be informed when determined.
|H-II Transfer Vehicle KOUNOTORI | Reaction of: DRRA-KJvTil on 17-09-18 11:50 | E-mail: info(at)drra.nl|
The H-II Transfer Vehicle (HTV), developed and built in Japan, is an unmanned cargo transfer spacecraft that delivers supplies to the International Space Station (ISS).
The HTV is launched from the Tanegashima Space Center aboard an H-IIB launch vehicle with up to 6,000kg of supplies. When the HTV approaches close to the ISS, the Space Station Remote Manipulator System (SSRMS), known as Canadarm2, grapples the HTV and berth it to the ISS. After the supplies, such as food, clothes and a variety of experiment equipment, are unloaded, the HTV will then be loaded with waste materials, including used experiment equipment or used clothes. The HTV will then undock and separate from the ISS and reenter the atmosphere. While the HTV is berthed to the ISS, the ISS crew will be able to enter and remove the supplies from the HTV Pressurized Logistics Carrier.
In addition to Russia's cargo spacecraft, Progress, the Automated Transfer Vehicle (ATV), developed and built by the European Space Agency (ESA), Cygnus Spacecraft developed by Orbital Sciences Corporation, SpaceX, and Japans HTV are currently utilized for delivering supplies to the ISS. Among these cargo freighters, the HTV can carry both pressurized and large unpressurized cargo. This is the unique special feature of the HTV.
The HTV Technical Demonstration Vehicle (initial flight vehicle) was successfully launched on September 11, 2009 (JST) from Tanegashima Space Center in Japan. As of 2014, four HTVs, including its technical demonstration mission (HTV1) have successfully completed the missions.
MHI (Mitsubishi Heavy Industries) began providing launch services in 2007 with the H-IIA, and withH-IIB Launch Vehicle in 2013 upon the technology transferred from Japan Aerospace Exploration Agency (JAXA).
Deze reclamezin is wel grappig:
Any cargo, Any orbit, Delivered safely on the target date.
|2nd HTV-7 launch attempt | Reaction of: DRRA-KJvTil on 22-09-18 17:49 | E-mail: info(at)drra.nl|
|Japan ready for 2nd HTV-7 launch attempt to Space Station, test of new recoverable capsule
written by Chris Gebhardt
September 21, 2018
The Japan Aerospace Exploration Agency (JAXA) is once again ready for the launch of their HTV-7 resupply craft to the International Space Station. HTV-7 will deliver a new set of batteries for the external portion of the Stations power generating and storage systems as well as new full-sized experiment racks and glove boxes for the inside of the orbital outpost. The second launch attempt for HTV-7 is currently set for 02:52:27 JST on Sunday, 23 September at the Tanegashima launch site – which is 1752:27 UTC/13:52:27 EDT on Saturday, 22 September.
HTV-7, or Kounotori 7, had been scheduled to launch in mid-August before schedule slips moved the launch to NET (No Earlier Than) 11 September local time at Tanegashima.
From a technical, engineering, payload, and Space Station readiness standpoint, all was on track for the targeted 11 September liftoff. However, mother nature interfered with those plans as Typhoon Mangkhut churned through the Eastern Pacific passing very close to Guam.
The island of Guam, an unincorporated and organized territory of the United States, houses the main ground station through which communications with NASAs TDRS-275 (Tracking and Data Relay Satellite) comm sat – the primary communications link between HTV and the H-IIB rocket and their ground controllers during launch – are handled.
Typhoon Mangkhut passed Guam in the hours immediately prior to the scheduled 11 September launch, forcing JAXA to pause liftoff until the hurricane passed and ground teams could assess damage to the communications network on Guam.
Ultimately, little to no damage was found and controllers rescheduled the launch for Friday, 14 September local time from the Tanegashima Space Center.
However, mother nature would once again run afoul of the launch teams plans, with inclement weather predictions for the 14th forcing the team to once again postpone the launch to Saturday, 15 September JST (14 September UTC).
The countdown for Saturday morning local time, Friday afternoon and evening UTC and EDT, had been timed to ensure that HTV-7 was placed into the orbital corridor of the International Space Station to permit a 3-day phasing profile with the outpost for capture and berthing.
The count – to all observations and reports – tracked nominally through fueling of the H-IIB rocket’s liquid fueled first and second stages. However, the launch attempt was scrubbed around the 1hr 50min mark prior to liftoff.
An official statement soon affirmed the scrub, with JAXA officials noting an off nominal pressure in a LOX valve as the cause of the pause and that it would take a week or more to fix the issue and get back into launch readiness posture.
The issue was quickly fixed, with JAXA setting Saturday, 22 September (local time)/Friday, 23 September (UTC/EDT) for launch; however, adverse weather forecasts for that day again forced a 24hr slip to the launch.
With the extra day, HTV-7 atop the H-IIB rocket are now set to launch at 02:52:27 JST on Sunday, 23 September from the Tanegashima Space Center in southern Japan – which is 1752:27 UTC/13:52:27 EDT on Saturday, 22 September.
When the countdown reaches culmination, the first stages two LE-7A engines will ignite on the pad at T-5.2 seconds and ramp up to full thrust, after which health checks will be performed prior to ignition of the four SRB-A3 strap-on solid rocket motors at T0.
After rising from the pad, the H-IIB rocket will pitch downrange, traveling southeast from Tanegashima to begin HTV-7s 5-day chase of the International Space Station.
The four solid rocket boosters will burn for 114 seconds (1 minute 54 seconds) before separating from the core stage at T+2 minutes 7 seconds.
After SRB burnout, the H-IIB will be under the singular power of its first stage engines, which burn Liquid Oxygen (LOX) and Liquid Hydrogen (LH2) for a total of 352 seconds (5 minutes 52 seconds).
Payload fairing separation will follow at T+3 minutes 40 seconds followed by first stage engine shutdown at T+5 minutes 47 seconds.
After first stage separation at T+5 minutes 54 seconds, the second stage, consisting of a single LE-5B engine burning LH2 and LOX, will ignite at T+6 minutes 1 second for a 499 second (8 minutes 19 seconds) burn.
Second stage engine cutoff will occur at T+14 minutes 20 seconds and will end the launch phase of the mission. HTV-7 will separate from the second stage at T+15 minutes 11 seconds at a planned distance of just over 2,310 miles (3,720 km) from its launch site.
The orbital altitude at separation is planned to be roughly 287 km with an overall orbit aligned with the International Space Station to permit three days of phasing and orbit raising maneuvers to set up for rendezvous and capture on Tuesday, 18 September.
Overall, this will be the 7th flight of the H-IIB rocket (a variant of the H-IIA) that was designed solely for launches of HTV crafts to the Space Station. H-IIB and HTV both flew for the first time just over nine years ago on 10 September 2009.
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