Voyager Spacecraft Hardware |
Voyager Spacecraft Hardware |
Guest_PhilCo126_* |
Jan 3 2006, 06:37 PM
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#1
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Guests |
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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May 7 2007, 07:30 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
The dual magnetometer set was an innovation pioneered by Mariner 10, where it would have taken a significant fraction of the very small mission budget to produce a "magnetically clean" spacecraft. The mid-way mag detects approximately the same spacecraft induced field as the outer mag, but at several times the field strength. Both instruments detect the same exterior field. As spacecaraft powere is switched on and off to different equipment, scan platforms and scanning instruments scan, etc, the difference between the two calibrates the spacecraft field component accuratly so it can be eliminated.
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