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In order to compute that last burn, NASA needed a precise position of the spacecraft, obtainable only by telescopic observation. All the observatories that could have done this were clouded over, except Oakland's Chabot Observatory, where members of the Eastbay Astronomical Society had been tracking the Moon flights.
EAS members received an urgent call from NASA Ames Research Station, which had ties with Chabot's educational program since the 60's
Originally posted by SayonaraJupiter
reply to post by dragonridr
From your source,
In order to compute that last burn, NASA needed a precise position of the spacecraft, obtainable only by telescopic observation. All the observatories that could have done this were clouded over, except Oakland's Chabot Observatory, where members of the Eastbay Astronomical Society had been tracking the Moon flights.
I looked at the weather map for 17 Apr 70 and it doesn't support what you have there.
All these cities had a clear skies forecast on 17 Apr 70:
Albequerque
Boise
Brownsville
Buffalo
Chicago
Des Moines
Detroit
El Paso
Great Falls
Helena
Honolulu
Miami
Milwaukee
New Orleans
Portland, Or.
San Francisco
Seattle
Shreveport
Spokane
International cities with clear skies:
Lima
Rio de Janeiro
Havana
Kingston
Monterrey
Vera Cruz
Madrid
Manila
New Delhi
Sydney
Tokyo
Here's my weather link for 17 Apr 70 and as you can see my sources are verifiable.
news.google.com...
EAS members received an urgent call from NASA Ames Research Station, which had ties with Chabot's educational program since the 60's
NASA already had ties to EAS who "had been tracking the Moon flights." I wonder how deep this working relationship goes if we continued to scratch the surface ...
You do realize every observatory on the planet was tracking the apollo mission right?
Originally posted by dragonridr Let me give you a clue they never put observatories in big cities reason being is the lights make it difficult to see stars.
The observatory moved to its Mountain Boulevard location in 1915 due to increasing light pollution and urban congestion. In the mid-1960s, the facility was expanded considerably.
The Chabot Observatory calendar records an application of optical tracking during the final phases of Apollo 13, on 17 April 1970. "Rachel, Chabot Observatory's 20-inch refracting telescope, helps bring Apollo 13 and its crew home. One last burn of the lunar lander engines was needed before the crippled spacecraft's re-entry into the Earth's atmosphere. In order to compute that last burn, NASA needed a precise position of the spacecraft, obtainable only by telescopic observation. All the observatories that could have done this were clouded over, except Oakland's Chabot Observatory, where members of the Eastbay Astronomical Society had been tracking the Moon flights. EAS members received an urgent call from NASA Ames Research Station, which had ties with Chabot's educational program since the 60's, and they put the Observatory's historic 20-inch refractor to work. They were able to send the needed data to Ames, and the Apollo crew was able to make the needed correction and to return safely to Earth on this date in 1970."
Originally posted by Waratah
Surely there is a telescope here on Earth that can be used to
view the lunar rovers and other crap left on the moon.
Originally posted by SayonaraJupiter
Originally posted by dragonridr Let me give you a clue they never put observatories in big cities reason being is the lights make it difficult to see stars.
The 1970 population of Oakland California was 361,561. I guess that's not a big city and has no lights?
www.bayareacensus.ca.gov...
You originally tried to post a bunch of fluff about the Oakland observatory and how it "saved Apollo 13". Are you abandoning that now?
Originally posted by hellobruce
Originally posted by Waratah
Surely there is a telescope here on Earth that can be used to
view the lunar rovers and other crap left on the moon.
Here is a project for you:
Get all the facts - distance to the moon, size of the lunar rovers and other hardware left on the moon.
Then work out the angular diameter these objects would subtend from the earth.
Then look at the angular resolution of earth based telescopes.
You will then have your answer!
" We did team with BellComm of Washington DC and NASA to conduct optical tracking of Apollo spacecraft from Apollo 7 through 17. We supplied the rotational rate decay of the ejected SLA panels which was used to help quantify the tiny residual atmospheric air resistance at the high altitude flights. We were also asked to provide our best positional coordinates of the tracked spacecraft from the specular reflection against the backdrop of stars in order to refine BellComm's orbital computations. Source www.astr.ua.edu...
Reports of each Apollo mission were prepared and submitted to BellComm. Source www.astr.ua.edu...
My own personal records were lost in the Berkeley Firestorm of 1991. Source www.astr.ua.edu...
Originally posted by SayonaraJupiter
reply to post by dragonridr
Originally posted by dragonridr And just so you know they have telemetry tapes for Apollo 12, 14, 15, 16, and 17.
Originally posted by dragonridr
reply to post by SayonaraJupiter
The missing tapes you are so own about were from Apollo 11 it was erroneously reported all apollo tapes were missing they were not. They recently uncovered a backup of one of the etas ill track it down for you i think i saw it on NASAs website but theres alot of stuff on there so ill have to look.
Originally posted by Waratah
James Webb Space Telescope go discover that egghead.
The project is working to a 2018 launch date
Originally posted by Waratah
James Webb Space Telescope go discover that egghead.
Originally posted by SayonaraJupiter
Originally posted by dragonridr
reply to post by SayonaraJupiter
The missing tapes you are so own about were from Apollo 11 it was erroneously reported all apollo tapes were missing they were not. They recently uncovered a backup of one of the etas ill track it down for you i think i saw it on NASAs website but theres alot of stuff on there so ill have to look.
I specifically asked you for sources and you haven't provided them. The Apollo telemetry tapes from Accession #69A4099 were lost. You say they still exist. Please post your sources now, thanks.
Originally posted by dragonridr
www.honeysucklecreek.net...