Quotulatiousness

April 14, 2014

SpaceX to test hover capability on next launch

Filed under: Space, Technology — Tags: , , , — Nicholas @ 08:25

In The Register, Brid-Aine Parnell explains what will be different about the next SpaceX launch to resupply the ISS:

NASA has said that SpaceX’s latest cargoship launch to the International Space Station will go ahead, despite a critical computer outage on the station, allowing the firm to test the craft’s hovering abilities.

[…]

The booster rocket that’s blasting the Dragon supply capsule into space is going to attempt to make a hovering soft landing after it’s disengaged and dropped back to Earth.

The spruced-up Falcon 9 has its own landing legs, which Elon Musk’s space tech company hopes will eventually make for precise set-downs on the surface of alien worlds. For this test though, the rocket will still be coming down over the ocean, just in case.

The launch is already a month late with its nearly 5,000 pounds of supplies and payloads, including VEGGIE, a new unit capable of growing salad vegetables for the ‘nauts to munch on. The ship was delayed from March after a ground-based radar system at Cape Canaveral was damaged.

October 29, 2012

The Dragon returns, bearing cargo

Filed under: Business, Space, Technology — Tags: , , , , — Nicholas @ 09:37

At The Register, Brid-Aine Parnell reports on the mostly successful cargo delivery round-trip by SpaceX’s Dragon capsule:

The reusable cargoship dropped into the ocean yesterday evening around 250 miles off the coast of Mexico after resupplying the ISS and its crew. The Dragon was ferried to a port near Los Angeles where it will be prepped for its return to SpaceX’s test facility in Texas.

Some of the cargo brought back by the capsule is due to be returned to NASA in the next couple of days, including research samples from the station’s microgravity environment. The ship delivered 882 pounds of gear to the ISS, including scientific research and crew supplies. It returned with nearly twice that weight of stuff.

The mission was only a part-success, as the secondary objective was to launch a satellite for Orbcomm, but due to a malfunctioning engine in the launch phase, the satellite could not be placed in the correct orbit and was lost. Orbcomm is sticking with SpaceX for two more satellite launches in spite of this initial failure.

October 17, 2012

Elon Musk drops hints about next SpaceX development direction

Filed under: Space — Tags: , , , , , — Nicholas @ 00:03

Zach Rosenberg reports on the next big thing we can expect from SpaceX:

Launcher developer SpaceX has promised a new engine for a new rocket, larger than the Falcon 9 that NASA expects to become a mainstay of its Earth orbit operations.

Elon Musk, the Silicon Valley entrepreneur who successfully parlayed the fortune he earned founding PayPal into launch systems developer SpaceX, said the new engine would not be based on the 160,000lb-thrust (712kN) Merlin 1 series that powers Falcon 9.

Musk said the new rocket, which he calls MCT, will be “several times” as powerful as the 1 Merlin series, and won’t use Merlin’s RP-1 fuel. Beyond adding that it will have “a very big core size”, he declined to elaborate, promising more details in “between one and three years”.

Musk declined to say what ‘MCT’ stands for, and declined to answer further questions on the project.

October 9, 2012

Falcon 9 loses an engine, able to partially complete mission

Filed under: Space, Technology — Tags: , , , , — Nicholas @ 07:40

Lewis Page at The Register, with a well-timed reminder that work in space is still not routine or ordinary:

The Falcon 9 rocket from upstart rocket firm SpaceX, which lifted off yesterday with supplies for the International Space Station, will deliver those supplies successfully following loss of an engine during launch. However a commercial satellite which was also aboard the rocket has been placed into a lower orbit than planned as a result of the mishap.

As we previously reported, the nine-engined Falcon first stage suffered an engine failure as it climbed towards space, with launch video giving the impression that one of the Merlin rockets had lost its nozzle. The Falcon is designed to carry out its mission even having lost an engine, and the flight path was duly adjusted. The Dragon capsule with supplies for the International Space Station was successfully sent on its way and is expected to reach the ISS without trouble.

[. . .]

Orbcomm says it is investigating the possibility of getting its satellite into the right place using its own onboard propulsion. Even if this can be achieved, however, it will be unsatisfactory as a satellite’s own fuel must be sparingly eked out over its operational lifespan to maintain it in orbit. Using up a lot of it before even beginning operations is liable to mean a short working life for the Orbcomm bird.

September 25, 2012

SpaceX Grasshopper completes first (tiny) hop

Filed under: Space, Technology — Tags: , — Nicholas @ 11:06

At The Register, Lewis Page discusses the first successful launch-and-hover by SpaceX’s Grasshopper:

SpaceX, the upstart space startup founded and bankrolled by famous internet nerdwealth kingpin Elon Musk, says it has carried out the first test of a new rocket craft which could lead to development of fully reusable spacecraft.

[. . .]

Grasshopper uses the fuel tank of the Falcon 9 first stage, but has only one Merlin rocket engine (as opposed to 9 on the real deal), so it is only a test vehicle. It is evidently intended to prove the technology needed to let a rocket descend to a vertical hovering landing. Such kit has already been proven in Moon and Mars lander missions, but is seldom employed for setdowns on Earth — and the job of putting down a towering 100-foot tall booster as opposed to a relatively handy capsule could be particularly challenging.

The idea would be that in future a Falcon 9 rocket stack would lift off as normal: but rather than waiting until the first stage had run out of fuel to separate and fire up the second stage, the lower booster would break away while it still had fuel left — enough to come down to a hovering pad landing. This would rob the whole stack of some lifting power, but on the other hand it would avoid the need to crash the pricey first stage into the sea and destroy it every time. This could potentially slash the costs of space launch: which is the avowed mission of SpaceX.

May 26, 2012

The cost of getting to space

Filed under: Economics, Space, Technology, USA — Tags: , , — Nicholas @ 09:47

According to a tweet passed along by Tim Harford, the Dragon flight is a huge bargain:

RT @dcurtis: SpaceX’s entire history, incl. rocket design, testing, and launch operations, has cost less than Facebook paid for Instagram.

May 25, 2012

Grabbing the Dragon‘s tail

Filed under: Space, Technology, USA — Tags: , , , , — Nicholas @ 11:20

Brid-Aine Parnell at The Register on today’s successful rendezvous with the ISS:

Elon Musk’s SpaceX has just made history with the first ever commercial cargoship to be captured by the International Space Station’s robotic arm.


Image from NASA TV

Flying above northwestern Australia, flight engineer Don Pettit aboard the ISS reached out with the Canadarm and grabbed the Dragon at 9.56am EDT, 14.56 GMT.

Reg staff are not sure if astronauts are given cheesy lines to say at these big moments, but Pettit had a great one ready.

“Looks like we’ve got a dragon by the tail,” he announced to Mission Control Centre in Houston.

“Looks like this sim went really well, we’re ready to turn it around and do it for real,” he joked.

May 24, 2012

Next step in Dragon/ISS drill: close fly-by

Filed under: Space, Technology, USA — Tags: , , , , — Nicholas @ 10:53

Lewis Page at The Register on the successful Dragon fly-by of the ISS:

It’s another moment of truth for upstart space startup SpaceX as once again the company attempts to do something that has only ever been accomplished to date by major government space agencies: docking one spacecraft to another in orbit and transferring cargo.

Having launched its new Dragon spacecraft on Tuesday — on only its second flight — SpaceX is now seeking to bring the ship to a docking with the International Space Station on Friday. Many boxes must be ticked before this can happen, however: but today the first was checked off as the Dragon made a close pass within 1.5 miles of the station, and ‘nauts aboard the orbiting outpost confirmed that their remote-control console was able to command the new ship. This was done by ordering the Dragon to illuminate its strobe lights as it flew by the Station.

In fact the station’s crew — the Dragon tests were handled by André Kuipers of the ESA and NASA’s Don Pettit — couldn’t see that the lights were on owing to bright sunlight illuminating the still quite distant Dragon. However telemetry confirmed that the capsule had received the radio command from the ISS and activated its lights, and viewers of NASA TV were treated to video of the Dragon as it gradually overhauled the station from beneath, passing above South Africa and the Indian Ocean as it did so.

May 22, 2012

SpaceX Dragon launches successfully

Filed under: Space, Technology, USA — Tags: , , , , — Nicholas @ 09:10

Brid-Aine Parnell reports on today’s launch of the SpaceX Dragon:

History is just days away from being made as SpaceX’ Dragon cargoship finally blasted off successfully on its Falcon 9 rocket this morning on its way to a rendezvous with the International Space Station.

Elon Musk’s private space firm has had a number of setbacks with the latest test flight of the Dragon, delaying again and again to make sure the software that will put it within spitting distance of the ISS was working properly. And just when it seemed there was no stopping the takeoff last Saturday, the computer held the ship on the ground.

The engines were already firing when the computer “saw a parameter it didn’t like” and aborted the trip. SpaceX engineers later replaced a faulty pressure valve.

However this morning at 08:44 UK time (03:44 US Eastern) there were no problems and the Falcon 9 rocket lifted off on schedule to place the Dragon capsule into an orbit which will carry it to a rendezvous with the station on Friday if all goes to plan.

The first hurdle in the commercial company’s maiden berthing with the ISS has been jumped, with the Dragon out of Earth’s atmosphere, but there’s still a lot to prove before Houston will give the go to attempt a docking.

May 19, 2012

SpaceX Dragon launch aborted, rescheduled to Tuesday at the earliest

Filed under: Space, Technology, USA — Tags: , , , , — Nicholas @ 09:13

Lewis Page at The Register on the scrubbed launch this morning:

The Falcon 9 rocket from private space company SpaceX, intended to launch this morning and send a Dragon capsule loaded with supplies to the International Space Station, has failed to take off. The rocket’s computer aborted the launch automatically at almost the final possible moment, when its engines had already ignited but the vehicle had not yet been released from the pad.

“The computer saw a parameter it didn’t like,” commented launch controllers after the abort, which saw the Falcon’s 9 main engines flare briefly into life as the countdown reached zero before cutting out again.

The rocket is not thought to have been damaged by the aborted launch, and controllers announced a provisional plan to check the craft, refuel it and make another launch attempt on Tuesday morning at 03:44 AM local time (08:44 UK time).

May 18, 2012

SpaceX Dragon smuggling secret cargo to ISS

Filed under: Space, Technology, USA — Tags: , , , , — Nicholas @ 08:35

At The Register, Brid-Aine Parnell gets all conspiracy theorized:

Just to add some icing to the SpaceX Dragon launch cake, the cargoship may be carrying a secret payload that nobody knows about.

The first ever commercial spacecraft to dock with the International Space Station, due to go up tomorrow, will already be carrying nonessential food, student science projects, clothes and other supplies for the ISS crew, but Elon Musk’s firm has also hinted there could be something else aboard.

On the last test flight of the Dragon, the craft carried a Top Secret cargo SpaceX refused to reveal to anyone until after mission, which turned out to be a lovely big wheel of cheese in an homage to the classic Monty Python sketch in the cheese shop.

On a slightly more serious level, Jonathan Amos has this report at the BBC News site:

Although billed as a demonstration, the mission has major significance because it marks a big change in the way the US wants to conduct its space operations.

Both SpaceX and another private firm, Orbital Sciences Corp, have been given billion-dollar contracts to keep the space station stocked with food and equipment. Orbital hopes to make its first visit to the manned outpost with its Antares/Cygnus system in the coming year.

Lift-off for the Falcon is timed for 04:55 EDT (08:55 GMT; 09:55 BST). It is going up from Cape Canaveral Air Force Station.

The ascent phase should last a little under 10 minutes, with the Dragon capsule being ejected just over 300km (185 miles) above the Earth.

The conical spaceship will then deploy its solar panels and check out its guidance and navigation systems before firing its thrusters to chase down the station.

A practice rendezvous is planned for Monday when Dragon will move to within 2.5km (1.5 miles) of the station.

If Nasa and SpaceX are satisfied that the vehicle is performing well, it will be commanded to fly up and over the outpost in preparation for close-in manoeuvres on Tuesday.

May 14, 2012

Dragon flight now scheduled for May 19

Filed under: Space, Technology — Tags: , , , — Nicholas @ 09:24

Brid-Aine Parnell at The Reg updates us on the SpaceX flight schedule:

The flight of the Falcon 9 has once more been rescheduled, with a new launch date of 19 May, as Elon Musk’s SpaceX decided to tweak the software one more time.

The first commercial craft to restock the International Space Station, a Dragon capsule strapped to a Falcon 9 rocket, has seen more than its fair share of push-backs for the test flight, but it will all pay off if the cargo ship can dock with the station.

SpaceX has already shown it can release and retrieve the Dragon, but getting it to motor alongside the fast-moving ISS and accurately berth with it is no mean feat and the firm has tested and retested the necessary software in the hopes it won’t end up with egg on its face.

[. . .]

Providing this test flight is successful, the Dragon will start to fulfil the contract for a minimum of 12 flights to resupply the ISS. Since the ship is reusable, it will be the only spacecraft capable of bringing cargo back with it as well. And, ultimately, SpaceX hopes that a version of the Dragon will be its first manned spaceship as well.

May 9, 2012

Incrementally privatizing the space program

Filed under: Space — Tags: , , , — Nicholas @ 09:04

April 18, 2012

Reason.tv: The Space Shuttle Era is Over (Thank God!)

Filed under: Government, Liberty, Space — Tags: , , , , — Nicholas @ 09:49

So the space shuttle Discovery has flown its last mission; it’s been towed over the nation’s capital like a bruised Chevy after a demolition derby before being deposited at the Udvar-Hazy air and space museum in northern Virginia.

Other space junkers — Atlantis and Endeavour — are being retired like Brett Favre in a pair of Crocs, too, bringing to end an underwhelming three decades of fruitless and tragic exploration of low-earth orbiting patterns.

Let’s face it: Once we beat the Russians to the moon, the national rocket grew limper than Liberace at a speculum convention. NASA has been dining out on a single 1969 hit longer than Zager and Evans.

The good news is that amateur hour is now over and the private space race has begun. Where two Cold War superpowers failed, let a thousand business plans bloom!

April 17, 2012

SpaceX Dragon cleared for April 30 flight to ISS

Filed under: Science, Space, Technology — Tags: , , , , — Nicholas @ 09:28

Brid-Aine Parnell updates the status of the SpaceX Dragon re-supply flight to the International Space Station at the end of the month:

The cargoship test flight, assuming it goes off without a hitch, will mark the first time a commercially made spacecraft has ever blasted off to visit the ISS.

NASA and SpaceX officials met yesterday in Houston for the Flight Readiness Review, a typical part of pre-launch prep at the agency, and confirmed that the Dragon and its SpaceX Falcon 9 rocket were on track for the end of this month.

“Everything looks good heading to the April 30 launch date,” said Bill Gerstenmaier, NASA’s associate administrator for Human Exploration and Operations, in a canned statement.

The Dragon is due to blast off from Cape Canaveral at 12.22 EDT (16.22 GMT) carrying 1,200 pounds of cargo.

Because this is a test flight, the cargo isn’t critical stuff for the astronauts, but NASA and SpaceX are still hoping to see the ship fly close enough to the station for its robotic arm to grab it and berth it, which is the tricky bit.

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