JAXA H-IIA IGS Optical 6

Image credit & copyright: Japan Aerospace Exploration Agency (JAXA).

Launch Alert: Monday, February 26 at 23:34 EST (04:34 UTC on the 27th), the Japan Aerospace Exploration Agency (JAXA), will be launching the Mitsubishi Heavy Industries H-IIA (H-2A) rocket; Launch Vehicle No. 38 (F38) flying in its 202 configuration (H-IIA 202). It will be carrying the IGS Optical 6 observational satellite for the Japanese government’s Cabinet Satellite Intelligence Center (CSICE) from Launch Area-Y1 (Also known as Area-Y1 or LA-Y1) at the Tanegashima Space Center (TNSC), Japan.

Tanegashima Space Center (TNSC): Tanegashima Space Center is located on the island of Tanegashima; the easternmost island of the Osumi Islands of Japan.  There are 2 active launch pads at Tanegashima; Launch Pad-1 (LP-1) and Launch Pad-2 (LP-2). They are in an area known as the Yoshinobu Launch Complex and designated as Launch Area-Y, Area-Y or LA-Y. They differentiate between pads by placing a (1) or a (2) after the designation. H-IIA rockets launch from Pad-1 while H-IIB rockets launch from Pad-2.

Mitsubishi Heavy Industries (MHI) H-IIA (H2A) Launch vehicle:

Height: 53 m (174 ft.)

Core Diameter: 4 m (13 ft.)

Width: 6.5 m (21.25 ft.)

Stages: 2

Boosters: 2 or 4

Total Engines: 2 (1 in the first stage and 1 in the second stage)

Total Thrust (sea level): 3,338 kN (750 lbf)

Mass: 289,000 kg (637,136 lb. or 289 tons)

Payload to Low Earth Orbit (LEO): 10,000 kg (22,046 lb. or 10 tons)

Payload to Geostationary Transfer Orbit (GTO): 4,000 kg (8,819 lb. or 4 tons)

Payload to Earth Escape: 2,500 kg (5,512 lb. or 2.5 tons)

Payload to Sun Synchronous Orbit (SSO): 4,000 kg (8,819 lb. or 4 tons)

Reusable: No

Cost: $90 million USD

Configuration Numbers Explained:

2 = number of stages (this number doesn’t change)

0 = number of liquid rocket boosters (LRB’s) (this number doesn’t change)

2 = number of solid fueled boosters (SRB’s) (this can be 2 or 4)

Photo Credit: (NASA/Bill Ingalls)

Payload Fairing (4S): is a two-shell composite enclosure, 12 m (39 ft.) long with a diameter of 4 m (13.1 ft.). The fairings are used to protect the spacecraft during ascent through atmospheric turbulence and into space. Once the rocket has reached a safe altitude the fairings are jettisoned, exposing the spacecraft(s).

Second Stage:

Height: 9.2 m. (30 ft.)

Diameter: 4 m (13 ft.)

Engine(s): Single LE-5B engine

Engine Chambers: 1

Engine Type: Expander Bleed

Propellant Feed:

Chamber Pressure: 12.7 MPa or 127 bar or 1,840 psi

Fuel Type: Liquid

Fuel: Liquid hydrogen (LH2)

Oxidizer: Liquid Oxygen (LOX). LOX is often coupled with rocket propellant-1 (RP-1), liquid hydrogen (LH2) and methane (CH4) as it creates a high specific impulse.

Thrust (vacuum): 137 kN (30.7 lbf.)

Single LE-7A Thrust to Weight Ratio:

Specific Impulse (vacuum): 448 s

Burn Time: 530 s

Restart Ability: Yes; up to three times.

Reusable?: No

Photo Credit: (NASA/Bill Ingalls)

Strap-on Boosters (SRB-A’s):

Height: 15,1 m. (49.5 ft.)

Diameter: 2.5 m (8.2 ft.)

Engine(s):

Engine Chambers: 1

Engine Type: Solid

Propellant Feed: Solid

Chamber Pressure: 11.8 MPa or 118 bar or 1,700 psi

Fuel Type: Solid

Fuel: Hydroxyl-terminated polybutadiene (HTPB)

Single SRB-A Thrust (sea level): 2,260 kN (508,068 lbf.)

Specific Impulse (sea level): 280 s

Burn Time: 100 s

Restart Ability: No

Reusable?: No

First Stage:

Height: 37.2 m. (122 ft.)

Diameter: 4 m (13 ft.)

Width: 6.5 m (21.25 ft.)

Engine(s): Single LE-7A Engine

Engine Chambers: 1

Engine Type: Staged combustion

Propellant Feed: Turbopump

Chamber Pressure: 12.7 MPa or 127 bar or 1,840 psi

Fuel Type: Liquid

Fuel: Liquid hydrogen (LH2)

Oxidizer: Liquid Oxygen (LOX). LOX is often coupled with rocket propellant-1 (RP-1), liquid hydrogen (LH2) and methane (CH4) as it creates a high specific impulse.

Single LE-7A Thrust (sea level/vacuum): 843.5 kN (189.600 lb.)/1,098 kN (247,000 lbf.)

Single LE-7A Thrust to Weight Ratio: 64.13

Total Thrust (sea level): 6,138 kN (1,379,877 lbf)

Specific Impulse (sea level/vacuum): 349 s/446 s

Burn Time: 390 s

Restart Ability: No

Reusable?: No

Stream Live:

JAXA YouTube: https://www.youtube.com/user/jaxachannel

IGS Optical 6 (F38) Mission:

 

General 2018 Launch Schedule (Wiki): https://en.wikipedia.org/wiki/2018_in_spaceflight

Japan Aerospace Exploration Agency (JAXA):

JAXA main site: http://global.jaxa.jp/

Twitter: https://twitter.com/jaxa_en

Facebook: https://www.facebook.com/JaxaJapanAerospaceExplorationAgency

Google Plus: https://plus.google.com/explore/jaxa

YouTube: https://www.youtube.com/user/jaxachannel

U Stream: http://www.ustream.tv/channel/jaxa-live

JAXA Digital Archives: http://jda.jaxa.jp/en/

Necovideo Visual Solutions (NVS):

Website: http://nvs-live.com/

YouTube: https://www.youtube.com/user/nvslivecom

NVS Twitter: https://twitter.com/nvslive?lang=en

NVS Facebook: https://www.facebook.com/nvslive/

JAXA H-IIA Rocket:

JAXA H-IIA Launch Vehicle: http://global.jaxa.jp/projects/rockets/h2a/

H-IIA launches (Wiki): https://en.wikipedia.org/wiki/H-IIA

JAXA IMAGES:

JAXA Digital Image Archives: http://jda.jaxa.jp/en/

JAXA Digital Image Archives (Rockets): http://jda.jaxa.jp/category_p.php?lang=e&page=&category1=1&category2=&page_pics=50

TANEGASHIMA SPACE CENTER:

Tanegashima Space Center (TNSC), Japan: http://global.jaxa.jp/about/centers/tnsc/index.html

Tanegashima Space Center (TNSC), Japan PDF: http://global.jaxa.jp/activity/pr/brochure/files/centers02_e.pdf

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