The hot fire test of the Antares first stage tonight was aborted at the last second.

The hot fire test of the Antares first stage tonight was aborted at the last second.

The planned first stage propulsion system “hot fire” test of Orbital’s new Antares medium-class rocket was halted in the final seconds of the countdown by the rocket’s flight computer, which detected an anomalous condition. The Antares team will evaluate the data from the test to determine the nature of the abort. A new date for the test has not been determined.

With any new rocket this kind of thing is to be expected. The concern here is the tight schedule that Orbital Sciences is under to get Antares and Cygnus operational. Long delays will not be good for them, considering the politics in Congress. Every delay will be used by certain politicians to get this program cut so the money can go to the very expensive Space Launch System that feeds the jobs in their districts.

Update: It appears the issue was that the computer detected a low pressure reading and aborted the burn. (A similar issue occurred on several of SpaceX’s early launches as was very quickly corrected.) A rescheduled hot burn is expected to take place next week.

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Russian investigators, having pinpointed the cause of a December 2012 launch failure, have cleared the Proton rocket to resume commercial launches in March.

Russian investigators, having pinpointed the cause of a December 2012 launch failure, have cleared the Proton rocket to resume commercial launches in March.

It is interesting that this failure of the Proton’s Briz-M upper stage was not related to two previous failures of that same upper stage. It is also interesting that the article does not describe what actions have been taken to correct the problem.

If I was a future Proton launch customer I would be very concerned. Three launch failures all related to the Briz-M upper stage, and all from different causes. This appears to suggest some fundamental problems with the stage itself, or with the company that manufactures it.

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Comparing the price of Falcon 9 with the Atlas 4.

Comparing the price of the Falcon 9 with the Atlas 4.

Today’s launch was conducted aboard the β€œplain Jane” version of the Atlas V, the 401, which has no strap on boosters, a single upper stage engine and a 4 meter fairing. It was originally awarded to Lockheed Martin Commercial Launch Services in 2007 for a $124 million fixed fee contract. By contrast the first NASA science launch awarded to the SpaceX Falcon 9, that of the Jason -3 satellite for 2014, was for $82 million. With current pricing for similarly equipped Atlas V 401 vehicles for NASA launches at roughly $150 million, based on awards from 2011, the difference is hardly trivial.

In other words, Falcon 9 is almost half the price. No wonder satellite companies are flocking to buy a launch on it.

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The leaders of Russia and Kazakhstan have announced that an agreement has been reached regarding Russia’s lease for the Baikonur spaceport.

The leaders of Russia and Kazakhstan have announced that an agreement has been reached regarding Russia’s lease for the Baikonur spaceport.

No details were released but I suspect that Kazakhstan has probably backed down from some of its demands, fearful of losing the Russians when the new Russian spaceport in Vostochny opens in 2015.

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