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Originally posted by carewemust
Is it really orbiting earth twice as far as the moon orbits the Earth, as the
BBC news report states? If so, doesn't that rule out almost anything man-
made?
Originally posted by zorgon
Whats a Neo-NASA
Originally posted by greatlakes
Huh? an NEO is an acronym for Near Earth Object.
orbitaldebris.jsc.nasa.gov...
NASS (NASA AMOS Spectral Study) began observations in May 2001 collecting data for 23 nights. Currently, data on more than 60 rocket bodies (R/Bs) and spacecraft (S/C) spectra have been collected using the 1.6 m telescope at the Air Force Maui Optical Supercomputing (AMOS) site. The remote spectra were compared to the database of spacecraft material spectra kept at JSC. Shown at the right is the reflectance spectrum of a LEO R/B (shown in black with more noise) overlaid with a laboratory sample (in red and smoother) in an attempt to characterize the material. This rocket body is identified as aluminum coated with white paint.
Spectral Wavelength Chart
orbitaldebris.jsc.nasa.gov...
A project that arose through the astronomy community highlighted the range of possible uses for the spacecraft materials spectral database. An object thought to be an asteroid, J002E3, was observed in September 2002. Its erratic orbit made astronomers question whether or not it was actually an asteroid. A spectrum, taken at the Infrared Telescope Facility (IRTF) on Mauna Kea, was sent to JSC to see if the spectrum would match man-made materials. A model of materials was created from known dimensions of a Saturn V upperstage and paint scheme. The models and the remote data are seen in Figure 2 . The variation between the two models is seen in the kind of white paint used. This object was concluded to be 60% white paint that has turned gold in color due to space environment exposure with the remaining materials being 10% black and 10% yellow paint and 20% exposed metals.
Originally posted by zorgon
COOL! So what we have here is an old piece of space junk, a spent fuel cartridge... that moved itself out of lunar orbit, put itself into a stable solar orbit fro thirty years, then left that orbit to go into Earth orbit
Quite a feat for "no fuel" I bet NASA drools over the ability to be able do that
First Confirmed Capture Into Earth Orbit is Likely Apollo Rocket, Not Another Natural Moon
NASA scientists have confirmed the first known capture of an object into Earth orbit from a Sun-centered orbit, thanks to continuing observations of what is most likely the long-lost third stage of a 1969 rocket to the Moon. "Last week we didn't know for sure that it had been captured, and now there's no doubt that it was captured in April of this year," said Dr. Paul Chodas of the Near-Earth Object Program Office at JPL. "What's more, we are virtually certain that it originally escaped Earth orbit in March 1971 and that it will escape again next June. It's only a temporary visitor." The object, named J002E3, was discovered Sept. 3 by Canadian amateur astronomer Bill Yeung, observing from El Centro, Calif.
Increasingly precise orbital calculations made possible from a second week of positional observations have nearly ruled out any chance the object will hit the Moon or enter Earth's atmosphere before it departs Earth orbit, Chodas said. Calculations made about a week after the discovery left higher impact possibilities, but now the chances of impact are less than 1 percent at either the Moon or Earth, and a third week of observations will likely push the odds to zero. The object is too small to be considered hazardous, in any case. More than 100 measurements of the object's position have now been reported from more than a dozen amateur astronomers, said JPL's Dr. Steven Chesley.
The two weeks of movement tracked by those observations make up about a sixth of one orbit around Earth. Scientists can extrapolate the object's path for years into the future and years into the past from that short arc. "The observations coming in are from a loosely organized network of dedicated amateur observers. Their data have been vital in determining this object's past and future paths," Chesley said. The object escaped from Earth orbit in March 1971, Chodas said. That fits its most likely identity as the third stage of the Saturn rocket that took Apollo 12 astronauts to the Moon in November 1969.
The 18-meter-long (60-foot-long) third stage was last seen in an elongated 43-day orbit around Earth, not much different from J002E3's current orbit. It probably completed nine or 10 Earth orbits, then swung far enough toward the Sun to be pulled into a Sun-centered orbit, he said. The transition happened through a special "portal" located at the L1 Lagrangian point, where the gravitational pulls of the Sun and Earth are approximately equal. Analysis this week by researchers from the University of Arizona, and MIT, suggests that J002E3's surface is white paint rather than more asteroid-like material. If it is not from the Apollo 12 rocket, some less likely possibilities are one of the four 7-meter-long (22-foot-long) panels that enclosed lunar modules from six Apollo missions or rocket stages from Soviet or U.S. unmanned lunar missions.
Those are less likely because they seem too small to match the object's observed brightness, and they are not known to have been left in orbits that could have escaped Earth. Additional observations in coming weeks may pin down the identification. After J002E3 escaped Earth's gravity in 1971, it raced Earth in circles around the Sun, but it had an inner lane, so it completed 33 solar orbits in the time it took Earth to complete 31. In 1986, the object lapped Earth on the inside, too far away to be snagged by Earth's gravity. This year, it was about to lap Earth again but passed too close to the L1 portal and Earth captured it.
The transition between Earth-centered dynamics and Sun-centered dynamics has been understood theoretically for years and has been used for designing orbits of some spacecraft, but this is the first time a capture into Earth orbit has been confirmed, Chodas said. Comet Shoemaker-Levy 9, which struck Jupiter in 1994, made this kind of transition into Jupiter's orbit several decades earlier. The Genesis spacecraft, currently collecting samples of solar-wind material near the L1 point, will use a similar maneuver for a low-energy return to Earth with the samples in 2004. Earth won't have seen the last of J002E3 when this peripatetic bit of space junk escapes after its sixth orbit in mid-2003. It will shift from solar orbit to Earth orbit again in decades ahead. "This type of orbit can't last very long," Chodas said. "That's one reason it would be very unlikely to find an asteroid with an orbit like this."
Within several thousand years, the object will likely end its travels by hitting the Moon or Earth. That is not cause for concern, though. Five rocket stages like the Apollo 12 third stage were crashed into the Moon intentionally as part of seismic research, and several others harmlessly disintegrated when they re-entered Earth's atmosphere. Images of J002E3's calculated path are available atneo.jpl.nasa.gov...
Astronomers at MIT played a key role this week in identifying a near-Earth object as most likely the third stage of an Apollo-era moon rocket.
Based on an analysis of the orbital trajectory of the object, it appears that the object is the S-IVB stage from the Apollo 12 mission, launched to the moon on Nov. 14, 1969. Further analysis by NASA's Jet Propulsion Laboratory scientists indicates that the object is likely to complete six orbits of the Earth and then return to an orbit around the Sun sometime next summer.
Originally posted by Yandros
Originally posted by carewemust
Originally posted by Yandros
Originally posted by carewemust
I've read that NORAD tracks over 30,000 man made pieces of earth-orbiting space debris as small as tennis balls on a 24/7 basis.
AHahaha yeah but they couldn't track two planes on ground radar on 9/11 because 'there was too many blips on the radar', and 'the planes turned their transponders off.'
Yandros, I think you're referring to the FAA not being able to alert the military until it was too late on 9/11/2001. NORAD if focused on military threats and tracking man-made objects in outer-space.. SEE: www.norad.mil...
-cwm
Oh yes and I suppose hijacked planes aren't considered military threats? Let me let you in on a little secret. Whenever there is unmarked unidentified metal flying in US radar, NORAD knows all about it.
Originally posted by greatlakes
And here's some MIT chaps that identify it (along with the fellows at University of Arizona who came to the same conclusion) that this is Titanium Oxide paint:
MIT astronomers ID object as Apollo stage
Originally posted by misterfantastic
you have done lots of reaserch on this topic! but what do you think it is greatlakes? space junk or ufo?
Originally posted by -ufo-
Hal9000,
What about these photos? (notice they were taken on the 1st year anniversary of 9-11, at the EXACT minute both planes hit WTC 1 and 2, 8:46, 9:02)
It says they were taken separated by ten-minute intervals with 60-sec. exposures each. If that is true then this must be the most fast and most slow object in the entire world. If it can move that far of a distance in 60 sec's, but only 10 minutes later, still be near the same stars it was 10 minutes earlyer, then WTF?
Hal9000 you have to be incorrect, and these objects are in fact long and skinny.
Originally posted by NLDelta9
Must be something other then a part from the ship. We have been up in space since it was discovered right, there is no way imo we didnt go up and make sure what it was.