TOKYO (Jaxa PR) — ASTROSCALE Japan Inc. (hereinafter referred to as “ASTROSCALE”) and the Japan Aerospace Exploration Agency signed a joint research agreement (“the agreement”) regarding the removal of space debris.
Under the terms of the agreement, ASTROSCALE will have access to JAXA’s technologies that examine the methods to approach and capture space debris. The technologies will facilitate ASTROSCALE’s development of ELSA-d, a technology demonstration satellite scheduled to be launched in the first half of 2019. ASTROSCALE and JAXA will also work together to validate the imagery of simulated debris obtained through the ELSA-d on-orbit mission. JAXA will not take direct part in the development, launch, or operation of ELSA-d, but will be involved in the research and development of relevant component technologies.
It is estimated that more than 750,000 pieces of space debris over a centimeter in size are currently in orbit, some of which are the result of breakups and collisions of spacecraft. As the continuously rising debris population poses an immediate threat to the orbital environment, taking countermeasures is urgently needed.
JAXA, in cooperation with universities and the private sector, will further establish the technology to eliminate space debris. Through this endeavor, JAXA hopes to protect the space environment and realize sustainable utilization of space.
Video Caption: JAXA has disclosed “Int-Ball Letter” Vol. 5 in which the latest video of the Kibo’s internal drone on the International Space Station (ISS) is presented.
This time, we will introduce how Int-Ball has grown as a buddy of ISS crew members. After its launch in June 2017, Int-Ball underwent the initial checkout on the ISS by NASA Astronaut Peggy Whitson and Astronaut Jack Fischer.
They returned to Earth on September 3, 2017 (JST). Let’s get a glimpse of the 3-month challenge and interaction that Int-Ball and they had on the ISS.
TOKYO (JAXA PR) — The Japan Aerospace Exploration Agency (JAXA) has for the first time disclosed images and movies taken by the JEM Internal Ball Camera called “Int-Ball”－its first camera drone that can record video while moving in space under remote control from the ground.
Int-Ball was delivered to Japanese Experiment Module “Kibo” on the International Space Station by the US Dragon spacecraft launched on June 4, 2017, and is currently undergoing initial verification. (more…)
TOKYO (JAXA PR) — JAXA tested LE-5B-3, the liquid rocket engine designed to propel the second stage of H3 Launch Vehicle now under development. LE-5B-3 enhances the LE-5B-2 engine that likewise boosts the second stage of H-IIA and H-IIB. LE-5B-2 has earned the time-tested record of reliability after scores of successful H-II launches. Improvements are being made to lower the cost of LE-5B-3, without compensating the dynamics to blast off H3, a larger rocket and to sustain its flight.
Following the design improvements for affordability and performance which reached the desired level in August 2016, JAXA successfully conducted the test of the liquid hydrogen turbopump in December 2016 through January 2017. The liquid hydrogen turbopump — equivalent of the heart of a human body — draws in the propellants into the engine thrust chamber.
Since March 2017, the first engine with the hydrogen turbopump, assembled for certification was completed, kicking off its preliminary firing testing. The test is proceeding on schedule. By September 2017, test results will expectedly prove the soundness of the basic design improvements.
TOKYO (JAXA PR) — PeptiDream Inc. (PeptiDream), a Tokyo-based public biopharmaceutical company, and the Japan Aerospace Exploration Agency (JAXA), a national research and development agency, has established a strategic partnership for the High-Quality Protein Crystal Growth (PCG) experiment on the Japanese Experimental Module (“Kibo”) of the International Space Station (ISS).
This strategic partnership agreement (this Agreement) is a renewal of the current fee-based contract and represents a further expansion of the relationship between PeptiDream and JAXA. Under this Agreement, the number of experimental protein samples to be investigated is increased six-fold over the original agreement, and the term is further extended from August 2017 to August 2020.
The new booster is set to replace the H-IIA and H-IIB launchers, which are the mainstay of Japan’s orbital rocket fleet. Mitsubishi Heavy Industries and IHI are leading the development of the new two-stage launch vehicle.
H-III is designed to launch payloads at lower costs. The basic configuration can carry 4 metric tons into sun synchronous orbit. By adding two to four strap-on boosters to the first stage, H-III will be able to lift up to 6.5 metric tons into geostationary transfer orbit.
The new booster will have a base cost of about 5 billion yen ($43.9 million). The H-IIA costs an estimated 10 billion yen ($87.8), with the more powerful H-IIB costing 10 billion yen ($131.5 million).
JAXA’s goal is for the H-III to complete flight tests and enter service in March 2021.
JAXA has published this Q&A interview with Michiru Nishida, a Japanese Foreign Affairs official who works on space debris debris issues.
— In light of the fact that the space debris situation is becoming more serious, what international agreements have been made, if any?
In 2007, the United Nations General Assembly adopted the Space Debris Mitigation Guidelines drafted by the Committee on the Peaceful Uses of Outer Space (COPUOS). This is a “soft law” that aims to limit the generation of new space debris. A soft law is not legally binding – member states are left to make efforts on their own initiative. The guidelines specify, among other things, that rockets and satellites should be designed to produce no debris, and that satellites in low Earth orbit should re-enter the atmosphere within 25 years of ending their mission.
JAXA has published the following Q&A interview with Mayumi Matsuura, the space agency’s space situation awareness (SSA) system project manager.
— What is the current state of space debris monitoring in Japan?
Space debris is monitored at the Kamisaibara Spaceguard Center and the Bisei Spaceguard Center, both in Okayama Prefecture. At Kamisaibara, we use radar to monitor debris in low Earth orbit (LEO) up to an altitude of approximately 2,000 km. Although the size of debris that can be monitored depends on its altitude, we can simultaneously track a total of 10 targets 1 meter or more in diameter. At Bisei, we use an optical telescope, which allows us to monitor debris in geostationary Earth orbit (GEO) at an altitude of 36,000 km.
JAXA analyzes data from these facilities to pinpoint debris orbit and position, and when this data and other inputs show that there is a possibility of debris colliding with satellites, a warning is issued to the satellite team. This is the role of the Space Tracking and Communications Center (STCC), where I work. To avoid being hit by debris, all you need to do is change your orbit, so the center prepares detailed proposals on when and how to do this. In some cases, debris is expected not to burn up on reentry into the atmosphere, but to fall back to Earth. In these situations, my job is to predict where it will reenter the atmosphere. (more…)
The Japanese space agency JAXA has published the following Q&A with Nobu Okada, founder and CEO of ASTROSCALE PTE. The company is focused on cleaning up orbital debris.
— It’s been said that you are the first private enterprise in the to attempt to clean up space debris.
Our mission is to secure long-term spaceflight safely by solving space debris issues. To achieve this, ASTROSCALE will extend its business model to a debris removing technology after gaining an understanding of the present space environment. As our first step, we investigate how much space debris exist in outer space. The size of space debris varies, and it is important to ascertain its density etc.
By Greta Keenan Okinawa Institute of Science and Technology
In 2005, the Hayabusa spacecraft developed by the Japan Aerospace Exploration Agency (JAXA) landed on Itokawa, a small near-Earth asteroid named after the famous Japanese rocket scientist Hideo Itokawa. The aim of the unmanned mission was to study the asteroid and collect a sample of material to be returned to Earth for analysis. Contrary to scientific predictions that small asteroids are barren nuggets of rock, photographs taken by the Hayabusa spacecraft revealed that the surface of Itokawa is strewn with different sized particles. Even more puzzling was the lateral separation of small and large particles – with large boulders occupying the highlands and small pebbles occupying the lowlands.
Undaunted by a launch failure last month, JAXA has decided to try another flight of its new SS-520-4 micro-satellite booster later this year.
January’s rocket was a three-stage version of the existing two-stage SS-520, modified to carry a miniature satellite. Off-the-shelf consumer product technology was incorporated to keep costs down. The rocket blasted off successfully. But during the first stage of the launch sequence, transmission of such critical data as its temperature and position ceased. The agency aborted the second stage, letting the vehicle fall into the ocean.
After the failed launch, JAXA scrutinized data from minirocket’s communications equipment and other components, and conducted new vibration tests. It eliminated parts that could have been responsible for the failure and put in place measures to prevent a recurrence of the problems. It will report in detail on the findings of its inspections at a section meeting of the technology ministry starting Monday.
JAXA’s effort to test an electrodynamic tether (EDT) that could help clean up orbital space debris has hit a snag, Japanese media report.
The 700 meter (2,297 ft) long tether was to have deployed from the Kounotori resupply ship after it separated from the International Space Station on Jan. 27. However, JAXA says the tether, which had a mass on the end that weights about 20 kg (44 lb.), did not deploy as planned.
The agency planned to continue trying to try to deploy the tether through Saturday (today). The supply ship is scheduled to burn up in the Earth’s atmosphere on Monday.
The tether is designed to slow down a piece of debris by running an electrical current through it. The current will hasten the entry of the debris into the Earth’s atmosphere.
“JAXA plans to perform Kounotori Integrated Tether Experiments (KITE) in order to establish and demonstrate EDT technology and to obtain some EDT characteristics, such as tether deployment dynamics, and electron emission and collection in space plasma,” the space agency says on its website.
“KITE will help us identify the features and key technologies necessary to design and develop an EDT system as a method for improving space safety by removing large debris,” the website states.