PARIS โ€” Alliant Techsystems Inc. (ATK), which has perhaps more to lose in NASAโ€™s proposed redirection than any other company, on Feb. 4 said it is counting on stiff congressional opposition to help limit the damage from U.S. President Barack Obamaโ€™s decision to cancel the Ares rocket.

In a conference call with investors, ATK Chief Financial Officer John Shroyer spelled out how much Aresโ€™ cancellation would cost ATK โ€” some $650 million would be removed from the companyโ€™s backlog โ€” and said Ares and the rest of the Constellation program can only be terminated with congressional approval.

โ€œAs a reminder, Congress passed language, which the president signed, which prevents NASA from re-directing funds away from the Constellation and shuttle programs,โ€ Shroyer said. โ€œWe expect this will be a very significant debate in the months to come.โ€

Minneapolis-based ATK is prime contractor for the Ares 1 rocketโ€™s first stage, which is derived from the ATK-built reusable solid-rocket boosters on the U.S. space shuttle, which will be retired this year. It also provides motors to the Orion crew-transport capsule as a subcontractor to Lockheed Martin.

As did Bethesda, Md.-based Lockheed Martin, ATK lost no time in expressing disappointment over NASAโ€™s Feb. 1 announcement that Ares and Orion and the rest of the Constellation program were to be terminated. Both companies issued statements questioning the logic of the Obama administrationโ€™s proposed  2011 NASA budget.

In the Feb. 4 conference call, ATK Chairman Ronald R. Fogleman, a retired U.S. Air Force general, said NASAโ€™s decision to scrap Ares and to count on a commercial space sector capable of launching astronauts is overly risky.

โ€œATK has the only man-rated stack in the game at this point,โ€ Fogleman said of the Ares 1, which in October made an inaugural test flight. โ€œWe have seen over the years that when you try to man-rate something itโ€™s not an easy task. Itโ€™s very expensive. Given the track record that weโ€™ve seen from the folks that are in the commercial business, we think thereโ€™s a long way to achieve anything that comes close to what we already have.โ€

ATKโ€™s Space Systems division is already reeling from the shuttleโ€™s expected retirement, from the end of Minuteman 3 ballistic-missile program and from the U.S. Defense Departmentโ€™s decision to terminate the Kinetic Energy Interceptor in-flight missile-defense system.

For the nine months ending Jan. 3, the Space Systems division reported a 12 percent decline in revenue, to $1.04 billion. But the divisionโ€™s operating profit margin improved to 12 percent from 10.9 percent for the same period a year earlier.

Shroyer said ATK expects about $500 million in NASA contracts in 2010, with $100 million from the remaining work on the shuttle and the remaining $400 million for Ares and Orion work as part of the Constellation program.

NASAโ€™s proposed 2011 budget, released Feb. 1, includes $2.5 billion in funding to close out existing Constellation-related work, plus $600 million in reserves in case the shuttleโ€™s retirement takes longer than expected.

Any extension of the shuttleโ€™s operations would generate some $25 million in revenue every three months for ATK, Shroyer said. He said ATK is unable to quantify how much of the $2.5 billion in Constellation-closeout fees it might receive.

ATKโ€™s two other divisions, Armaments Systems and Mission Systems, both reported strong revenue growth for the nine months ending Jan. 3. The companyโ€™s total revenue for the period of $3.56 billion is a 7 percent increase over the same period a year ago. The company-wide operating profit margin for the nine months was 11.3 percent, compared to 10.5 percent the previous year.

Peter B. de Selding was the Paris bureau chief for SpaceNews.