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Voyager Spacecraft Hardware
Guest_PhilCo126_*
post Jan 3 2006, 06:37 PM
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Some questions on the basic hardware of the Voyager spacecraft:

1. From which material was the decahedral space bus made ( Aluminium ? )
2. Exact weight of the spacecraft - literature gives numbers between 792 and 825 kilograms ?


Some additional questions:

1. The Deep Space Network of worldwide antenna sites wasn't sufficient to collect the faint signal of the distant spacecraft once beyond Saturn ... I know that the twenty-seven 25-meter steerable radio antennes of the Very Large Array in New Mexico were linked with DSN ... when was this done exactly?
( 1989 Neptune encounter only ? )
2. What is the actual telecommunications time-lag 1-way to Earth (after having passed the bow-shock )

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Guest_PhilCo126_*
post Feb 3 2007, 04:27 PM
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Only some gif images labeled "unknown" ( = no NASA photo-number )
http://voyager.jpl.nasa.gov/image/assembly.html
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dilo
post Feb 3 2007, 10:12 PM
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Amazing pictures, Phil.
Can someone explain why the dark color of the blankets, contrary to the usual gold cover? Which material they used?


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Paolo
post Feb 4 2007, 09:29 AM
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QUOTE (dilo @ Feb 3 2007, 11:12 PM) *
Amazing pictures, Phil.
Can someone explain why the dark color of the blankets, contrary to the usual gold cover? Which material they used?


JPL started using black thermal blankets on Mariner 4. They had had many issues with thermal control on Mariner 2.
From the paper "Mechanical evolution of the Mariner spacecraft" by J.N. Wilson (1966)
"Although the black shields absorbed more solar energy than did the Mariner II white shields, the uncertainty in the amount of energy absorbed was less. Increased layers of insulation allowed the total heat transmitted through the shield to be reduced to a minimum"


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dilo
post Feb 5 2007, 06:31 AM
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QUOTE (Paolo @ Feb 4 2007, 10:29 AM) *
JPL started using black thermal blankets on Mariner 4. They had had many issues with thermal control on Mariner 2.

Grazie, Paolo!
Is a strange motivation, anyway I like very much this black dressing: it looks somewath alien today! rolleyes.gif


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Posts in this topic
- PhilCo126   Voyager Spacecraft Hardware   Jan 3 2006, 06:37 PM
- - ugordan   As far as telecoms delay is concerned, Heavens abo...   Jan 3 2006, 07:22 PM
- - Analyst   Check out the Voyager Neptune Travel Guide, much m...   Jan 3 2006, 07:40 PM
- - PhilCo126   Thanks, are there any High-resolution Voyager spac...   Jan 3 2006, 08:32 PM
|- - DDAVIS   [quote=PhilCo126,Jan 3 2006, 08:32 PM] Thanks, are...   Jan 14 2006, 09:53 AM
- - Analyst   QUOTE 2. Exact weight of the spacecraft - literatu...   Jan 13 2006, 07:23 AM
|- - Liss   QUOTE (Analyst @ Jan 13 2006, 11:23 AM) T...   Jul 9 2014, 09:11 AM
- - PhilCo126   Only some gif images labeled "unknown" (...   Feb 3 2007, 04:27 PM
|- - dilo   Amazing pictures, Phil. Can someone explain why th...   Feb 3 2007, 10:12 PM
|- - Paolo   QUOTE (dilo @ Feb 3 2007, 11:12 PM) Amazi...   Feb 4 2007, 09:29 AM
|- - dilo   QUOTE (Paolo @ Feb 4 2007, 10:29 AM) JPL ...   Feb 5 2007, 06:31 AM
|- - rlorenz   QUOTE (Paolo @ Feb 4 2007, 05:29 AM) JPL ...   Nov 3 2007, 01:27 PM
- - Ian R   Is the Von Karman auditorium Voyager spacecraft re...   Feb 4 2007, 01:38 AM
- - PhilCo126   First I would like to thank those UMSF forum-membe...   Feb 4 2007, 11:01 AM
- - PhilCo126   Here's another small resolution view of the Vo...   May 6 2007, 02:04 PM
- - PhilCo126   Sharing an amazing view of the check-out of Voyage...   May 6 2007, 02:08 PM
- - edstrick   The dual magnetometer set was an innovation pionee...   May 7 2007, 07:30 AM
|- - Liss   Oh well... May I ask more questions? 1. The 16 hy...   Oct 26 2007, 08:50 AM
|- - Liss   QUOTE (Liss @ Oct 26 2007, 12:50 PM) The ...   Jul 22 2009, 07:36 PM
- - PhilCo126   Noticed Part II is on the Voyager computers, so it...   Nov 12 2007, 07:41 PM
- - sci44   I was wondering if anyone knew the memory capacity...   Nov 20 2008, 08:51 PM
|- - climber   QUOTE (sci44 @ Nov 20 2008, 09:51 PM) I w...   Nov 20 2008, 09:35 PM
|- - Liss   QUOTE (sci44 @ Nov 21 2008, 12:51 AM) I w...   Jul 22 2009, 07:29 PM
- - sci44   Thanks for that - so the DTR can hold 8 tracks, 12...   Dec 1 2008, 10:56 PM
- - PhilCo126   http://www.goldenrecord.org/   Dec 15 2008, 03:53 PM
- - Jared Robertson   That's an awesome site. I tried to find a cop...   Dec 26 2008, 01:59 AM
|- - ugordan   QUOTE (Jared Robertson @ Dec 26 2008, 02...   Dec 26 2008, 11:50 AM
- - nprev   Gold is very resistant to corrosion (like from ato...   Dec 26 2008, 05:33 PM
- - Ian R   This seems like an appropriate thread to post this...   Sep 30 2010, 03:37 PM
- - Ian R   A NASA film called "Project Voyager" can...   Sep 30 2010, 03:53 PM


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