Tag Archives: SpaceX

Space Junk Removal


The first experiment designed to demonstrate active space-debris removal in orbit reached the International Space Station on April 4, 2018 aboard SpaceX’s Dragon capsule.    The RemoveDebris experiment, designed by a team led by the University of Surrey in the U.K. as part of a 15.2 million euro ($18.7 million), European Union (EU)-funded project, is about the size of a washing machine and weighs 100 kilograms (220 lbs.).

It carries three types of technologies for space-debris capture and active deorbiting — a harpoon, a net and a drag sail. It will also test a lidar system for optical navigation that will help future chaser spacecraft better aim at their targets.

“For this mission, we are actually ejecting our own little cubesats,” Jason Forshaw, RemoveDebris project manager at the University of Surrey, said last year. “These little cubesats are maybe the size of a shoebox, very small. We eject them and capture them with the net.”

“We are testing these four technologies in this demonstration mission, and we want to see whether they work or not,” said Forshaw, referring to the harpoon, net, drag sail and lidar. “If they work, then that would be fantastic, and then these technologies could be used on future missions.”

Some 40,000 space objects — the vast majority of which are defunct satellites and fragments from collisions — are currently being tracked by the U.S.-based Space Surveillance Network. It is estimated that some 7,600 metric tons (8,378 tons) of junk hurtle around the Earth at speeds of up to 17,500 mph, threatening functioning spacecraft, according to a statement from the University of Surrey….

[T]hese same means of capturing debris could easily be used to destroy or otherwise interfere with functional orbital assets [i.e, a functional satellite], most of which are not equipped with a rapid means of evasion or any other form of defense. To a harpoon, net, or drag sail, there is little difference between an out of control hunk of Soviet era rocket and an operational communications or reconnaissance satellite.

Excerpts from BY ALEX HOLLINGS, SpaceX delivers prototype space junk collector to the ISS, but the experiment has serious defense implications, SOFREP.com, Apr. 6, 2018;This Space Junk Removal Experiment Will Harpoon & Net Debris in Orbit, Space.com, Apr. 6, 2018

How to Play the Game

A SpaceX Falcon rocket lifted off from the Kennedy Space Center in Florida on May , 2017 to boost a classified spy satellite into orbit for the U.S. military, then turned around and touched down at a nearby landing pad.

It was the 34th mission for SpaceX, but its first flight for the Department of Defense, a customer long-pursued by company founder Elon Musk. The privately owned SpaceX once sued the Air Force over its exclusive launch services contract with United Launch Alliance (ULA), a partnership of Lockheed-Martin and Boeing.)  The liftoff of a classified satellite for the National Reconnaissance Office (NRO) officially broke ULA’s 10-year monopoly on launching U.S. military and national security satellites.

In addition to the NRO’s business, SpaceX has won two Air Force contracts to launch Global Positioning System satellites in 2018 and 2019.  For now, the military’s business is a fraction of more than 70 missions, worth more than $10 billion, slated to fly on SpaceX rockets. But with up to 13 more military satellite launches open for competitive bidding in the next few years and ULA’s lucrative sole-source contract due to end in 2019, SpaceX is angling to become a majo launch service provider to the Department of Defense.

A month ago, SpaceX for the first time launched one of its previously flown rockets to send an SES communications satellite into orbit, a key step in Musk’s quest to demonstrate reusability and slash launch costs.

Excertps, SpaceX Launches US Spy Satellite on Secret Mission, Nails Rocket Landing, Space.com, May 1, 2017

Space Conquest: Brazil

vls-1, Brazilian Space Agency's satellitel launch vehicle. image from wikipedia

The Brazilian government is ending a decade-long project to operate Ukraine’s Cyclone-4 rocket from Brazilian territory following a government review that found too many open questions about its cost and future market success, the deputy chief of the Brazilian Space Agency (AEB) said.  It remains unclear whether the decision will force Brazil to pay Ukraine any financial penalties for a unilateral cancellation of a bilateral agreement. Over the years, the work to build a launch facility for Ukraine’s Cyclone at Brazil’s Alcantara spaceport has suffered multiple stops and starts as one side or the other fell short on its financial obligations to the effort…

“There have been challenges on the budget issues, on the technological aspects, in the relationship between Brazil and Ukraine and in the actual market for export that would be available. So it is a combination of things.”  said Petronio Noronha de Souza, AEB’s director of space policy and strategic investments.  The Alcantara Cyclone Space project was to give Brazil and Ukraine access to the global commercial launch market for satellites in low and medium Earth orbit, with the possibility of launching very light telecommunications satellites into geostationary orbit.

Noronha de Souza said the idea of making a profit in the launch business is now viewed as an illusion. The project, he said, was unlikely ever to be able to support itself on commercial revenue alone.  “Do you really believe launchers make money in any part of the world? I don’t believe so. If the government doesn’t buy launches and fund the development of technology, it does not work,” he said.  “Everybody talks about SpaceX [of Hawthorne, California] like it’s magic, somehow different. It’s no different. Their connections with NASA have been important. If NASA had stopped the funding, where would they be? I really appreciate what they are doing, but I doubt whether launch bases can make money and survive on their own without government support.”…

While the Cyclone-4 project is about to end, Brazil has maintained as a strategic goal the development of a space-launch vehicle from the Brazilian military-owned Alcantara facility. As such it is continuing work with the German Aerospace Center, DLR, on a small solid-fueled vehicle, called VLM-1 for Microsatellite Launch Vehicle, that began as a launcher for suborbital missions and has evolved to a small-satellite-launch capability….

AEB is a purely civilian agency funded through the Science and Technology Ministry. Until a few years ago, the Brazilian military had not been a player in the nation’s space policy. That is starting to change with the Brazilian Defense Ministry’s establishment of space-related operational requirements.  Among those requirements is a radar Earth observation satellite, which AEB has penciled into its program for around 2020. Aside from allowing the use of its Alcantara site, the Brazilian military is not yet financing any AEB work, but the military is expected to pay for launches of its satellites once the development is completed

AEB is finishing design of a small multimission satellite platform whose first launch will be of the Amazonia-1 Earth observation payload, with a medium-resolution imager of 10-meter-resolution, similar to the capacity of today’s larger China-Brazil CBERS-4 satellite, which is in orbit.

Brazil and Argentina’s CONAE space agency will be dividing responsibility for an ocean-observation satellite system, using the same multimission platform, called Sabia-Mar. The first Sabia-Mar is scheduled for launch in 2017, with a second in 2018, according to AEB planning.

Excerpts from Peter B. de Selding Brazil Pulling Out of Ukrainian Launcher Project,  Space News, Apr. 16, 2015

Russia has rushed to take advantage of the cancellation of space agreement between Brazil and Ukraine. [Russia] wants bot build  joint projects and space programs on the long term with BRICS Group member countries, particularly Brazil.  Brazil attempts to build its own cosmodrome, and unfortunately for the loss of Ukraine and its technology, the Brazilian-Ukrainian Project for the use of the Cyclone rocket in coastal launchings is practically minimalized…Russia proposed its variant of work, consisting in principle on the installation, already existent, of several satellite navigation stations Glonass and tbe idea of helping Brasilia in some way to the construction of the cosmodrome.

Excerpt from  Odalys Buscarón Ochoa, Russia Interested in Space Coop with BRICS Countries, Prensa Latina, Apr. 24, 2015

Technology Firms Invade Defense Industry

Satellite Collision

[N]imbler Silicon Valley outfits are beginning to invade the defence industry’s territory. “Warfare is going digital,” observes Tom Captain of Deloitte, a consulting firm. Tech firms have shown that they can supply robots, drones and intelligence software. SpaceX, founded by Elon Musk, a tech entrepreneur, is taking America’s air force to court to reopen bidding for a satellite-launch contract awarded to Boeing and Lockheed.

Excerpt, Weapons-makers: The case for defence, Economist, July 19, 2014, at 55