Timeline for Are spacecraft visits to Uranus and Neptune hard to plan?
Current License: CC BY-SA 4.0
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| Mar 13 at 2:48 | comment | added | manassehkatz-Moving 2 Codidact | @user253751 I'm not so sure about that. In a quick search it looks like the federal budget as a % of GDP has been relatively static, though overall trending slightly higher, for the last 50+ years. The definition of "public interest" has changed - NASA budget as % of federal budget peaked with Apollo and has been trending downward ever since (except for a slight bump early 1990s). | |
| Mar 12 at 22:48 | comment | added | Mark | @supercat, most of the Voyager boost came from Jupiter. An ideal Earth-Jupiter-Neptune or Earth-Jupiter-Uranus alignment happens about every twelve years; sub-ideal alignments happen almost every year. (The Voyager Grand Tour alignment happens every 175 years, but you don't need that if you're just going to a single destination.) | |
| Mar 12 at 17:41 | comment | added | supercat | I would expect the delta V requirement for either kind of mission could be greatly affected by the relative positions of Earth, Jupiter, and Saturn in their orbits. The Voyager probes were launched when they were to exploit the particular alignment of the planets at that time; if you can readily find information about whether any future launch windows would be particularly advantageous, it might be useful to include it. | |
| Mar 12 at 15:24 | comment | added | Darth Pseudonym | In addition, if we were going to send a mission to one of the ice giants, we'd probably want to drop into orbit out there and get an extended data collection period, which is really difficult. You can either get there in a relatively reasonable time and be going so fast that you can't stop, or you can get there at a reasonable speed and take so long that the probe might fail from general wear and tear before it arrives. | |
| Mar 12 at 0:53 | vote | accept | CommunityBot | ||
| Mar 12 at 0:51 | history | edited | 4NT4R3S | CC BY-SA 4.0 |
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| Mar 12 at 0:33 | history | edited | 4NT4R3S | CC BY-SA 4.0 |
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| Mar 12 at 0:28 | history | answered | 4NT4R3S | CC BY-SA 4.0 |