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FAA Urgent Warning on Falling Satellite a Success?

By Robert Goyer / Published: Sep 29, 2011
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Flying Magazine | The World’s Most Widely Read Aviation Magazine

Photo: NASA

In case you missed it, last weekend the FAA issued an “Urgent Airman Notification” for the re-entry of a dying NASA upper atmosphere research satellite. The Notam called for pilots to keep an eye open for debris from the satellite, though it didn’t offer any specific advice about what pilots should do if they were to come face to face with a school-bus-size hunk of space metal screaming toward them at speeds of 18,000 mph. Nor was there any indication about exactly why the notification was deemed “urgent.” There were no flight restrictions associated with its issuance.

Pilots’ responses to the notam, based on tweets and message boards around the aviation universe, revealed mostly amusement. One commented that the advice to call a flight service briefer for more information would have resulted in an awkward and quiet conversation. A military pilot wondered if, when doing nap of the Earth training flights, he and his fellow jet jocks should be looking up instead of down.  

In case you’re still in suspense, you can rest easy. At least we think you can. The satellite eventually came to Earth, or at least NASA scientists think it did. They admit that they don’t know exactly where or exactly when it reentered or how much debris made it to Earth. In another amusingly vague and useless piece of information, NASA predicted the satellite’s calculated re-entry zone would cover most of the planet. They now suspect it re-entered somewhere over the remote Pacific. (Maybe they should have called Flight Service for more advice?)

The best news of all was that there were no reports of airplanes brought down by the hypersonic debris, thanks, no doubt, to the urgent FAA warning.

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bosshawk's picture

I was one of those who questioned the NOTAM. You are correct: who would have noticed an object falling toward them at 18,000 MPH? Maybe a split second before they were hit from above: maybe not. Call a Flight Service Station: it would take longer to get through to them than it would take to see the piece of debris. Another example of the FAA going to a CYA operation?

I spent almost 40 years in the space business and we always took great pains to be sure that we dumped our used up satellites into the Marianas Trench: 25,000 ft of water in the Pacific. Never lost one.

olasek's picture

Robert,

I slightly disagree with your characterization that NASA predicted the re-entry zone to cover the whole Earth. Perhaps this was the case days before the re-entry but I was following NASA's updates and hours before the reentry they were able to exclude certain continents, and then issued the final update that the reentry was going to happen in the next hour so given satellite's track it was obvious that reentry would occur over Pacific or PNW/Northern Canada. I think their updates were quite reasonable in terms of what they could say and how far in advance they were predicting.

airbusflyboy's picture

Incredible amount of information, however useless and tell me who is going to suspend aviation activity because of falling debris from space ???

Michele's picture

"FAA Urgent Warning on Falling Satellite a Success?"

I'd have to say the answer is yes. As far as I've heard, every aircraft on the planet managed to dodge this aerial hazard to navigation thanks to this timely alert. I'll be looking forward to further helpful warnings of this type in the future, like about that meteorite that's headed towards earth in 2026, or perhaps that Superman is on a mission to save Lois Lane and may be in the vicinity.

Don Parker Bazemore's picture

You know, there could be as much as 1600 sattleties in orbit right now.
Man! thats a lot of duckin' an weavin'!

Don Parker Bazemore's picture

Thats " sattlelites".
Sorry!

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