Marcelo Ramos wrote:
Sem querer estimular fobias aeronáuticas em ninguém, principalmente depois
dos acontecimentos recentes, mas...essa notícia abaixo (de 2007) é prova de
que *shit really seriously happens sometimes*. Nossa vida urbanóide cercada
pela poluição luminosa por todos os lados frequentemente nos faz esquecer de
observar o céu. Por isso, para a maioria das pessoas, meteoros são
entidades míticas, como o lobisomem e a mula sem cabeça. Mas devo dizer que
uma das "aparições meteoríticas" mais espetaculares que já tive oportunidade
de ver foi, entre todos os lugares, justamente em um anoitecer na praia em
Fernando de Noronha, com um enorme rastro verde _ e audível! _ caindo no mar
a alguns quilômetros da praia onde estava.
Airliner's near-miss blamed on meteorite*5:00AM* Friday Mar 30, 2007
By Derek Cheng<
http://www.nzherald.co.nz/derek-cheng/news/headlines.cfm?a_id=207>
[image:
A meteorite is the suspect because the Russian space junk plunged to Earth
right on schedule, 12 hours after the jet flew by. Photo / Richard Robinson]
A meteorite is the suspect because the Russian space junk plunged to Earth
right on schedule, 12 hours after the jet flew by. Photo / Richard Robinson
Experts now doubt that the fiery fragments that narrowly missed an
Auckland-bound aircraft were the remains of a Russian satellite.
*The fragments thundered past the Lan Chile Airbus 340, which was carrying
up to 300 people from Santiago, Chile, about 10pm on Tuesday.*
*The pilot reportedly saw the objects and heard a boom as they entered the
atmosphere, about 10km in front of and behind the aircraft.*
*Captain Steven Anderson, assistant secretary of the Australian and
International Pilots Association, said the objects must have been very large
to be heard.*
*"To hear it over the noise of the aircraft [it] would have to be
exceptionally loud. If it was a sonic boom and a large piece of debris, if
that had hit the aeroplane it would have been quite catastrophic."*
The aircraft completed its flight without incident and Lan Chile reported
what had happened to aviation authorities in New Zealand and Chile.
Captain Anderson said it was unlikely the object was a satellite as most
space debris burned up by the time it reached cruising altitude of about
35,000 feet (10,668m).
*
*
"I would imagine that a satellite, by the time it reached the aircraft,
would have been completely destroyed," said Captain Anderson, who has 27
years' international flying experience.
The chance of colliding with a meteorite in mid-flight was practically zero,
he said.
The pilot's initial reports were that he saw a man-made object. Space
agencies are required to track space debris and publish when and where it
might re-enter the atmosphere.
The process has been described as reliable, prompting speculation that the
fragments were from a meteorite.
Debris from a Russian satellite was scheduled to re-enter the atmosphere
about 12 hours after the near-miss, and the US space agency, Nasa, said
yesterday that the debris came through at the expected time.
Questions also remain over where the incident occurred. It was initially
reported that it happened just after the Auckland-bound aircraft entered New
Zealand airspace.
But Lan Chile said yesterday the flaming object was seen a few minutes
before reaching New Zealand airspace.
"The captain reported to have had visual contact with incandescent fragments
several kilometres from the aircraft. The aircraft landed safely at Auckland
Airport and continued flying to Australia as scheduled," the airline said.
Lan Chile would not comment on the number of people on board, but it is
understood there were 250 to 300 passengers and crew - nearly a full load.
Authorities and pilots the Herald spoke to said they had not heard of any
occasion when a pilot had seen and heard debris passing by an aircraft.
Civil Aviation Authority spokesman Bill Sommer said dumping space junk took
place on a fairly regular basis, though it was not frequent.
"Space agencies track satellites, and if they're coming down they can
predict when and where reasonably accurately. Airlines will then have that
information and make sure they don't fly through those areas.
"It's a large chunk of ocean where there's no people, no islands in the
area, and it's used to bring satellites back down and put them into the
sea."
The system was reliable and "if I was a betting person, I would bet on a
meteorite rather than space debris".
Airways New Zealand, which manages air traffic in New Zealand's airspace,
has not ruled out the possibility of a meteorite, spokesman Ken Mitchell
said, even though "the pilot's initial assessment was that he was
encountering space debris of a man-made nature".
The Civil Aviation Authority investigation is expected to be complete within
a month.
=============================
"Any observed statistical regularity will tend to collapse once pressure is
placed upon it for control purposes."
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