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21 votes
Accepted

When will Lucy deploy its solar panels?

One hour after launch. "At about one hour after the spacecraft launches, the solar panels will need to deploy flawlessly in order to assure that we have enough energy to power the spacecraft ...
Organic Marble's user avatar
11 votes

Why are Jupiter's trojans even remotely stable?

I'm answering my own question here based largely on the comment from @CuteKItty_pleaseStopBArking Saturn's influence can be separated into a radial component (near Saturn's conjunction with the ...
Roger Wood's user avatar
  • 3,884
8 votes
Accepted

What propulsion will Lucy use for its deep space maneuvers?

This article on the Psyche mission says Lucy's propulsion is to be chemical (in contrast to Psyche's electrical propulsion). Since the fuel needs to be stored long-term, it's almost certainly a non-...
Russell Borogove's user avatar
6 votes
Accepted

Where is Lucy going? (asteroid mission)

A more detailed trajectory is available in the usual place for the sort of detail you're looking for: the NTRS. LUCY: NAVIGATING A JUPITER TROJAN TOUR A unique trajectory was discovered which visits ...
Hobbes's user avatar
  • 128k
6 votes

What propulsion will Lucy use for its deep space maneuvers?

A few Lucy team members were asked this at a Q&A event. Wilfredo Santiago, a thermal engineer at Lockheed Martin, answered: ...there's a few tanks onboard. One of them is carrying the fuel, which ...
dez's user avatar
  • 386
3 votes
Accepted

Has Lucy's solar panel been fully deployed yet?

It appears NASA is biding their time, analyzing their options, and tentatively planning an attempt to latch the array in April. No need to rush, and the entire mission can probably be accomplished ...
Fred Larson's user avatar
3 votes

Why are Jupiter's trojans even remotely stable?

A little perspective might be borne in mind: In terms of relative mass and distance of disturbing planets, Jupiter's trojans are less disturbed than their counterparts with any of the other five ...
Oscar Lanzi's user avatar
  • 8,525
3 votes
Accepted

How well can the orbits of Jupiter Trojans to be visited by Lucy be predicted?

In this answer to the question How to calculate the planets and moons beyond Newtons's gravitational force? I show that you can calculate the Sun, the Moon, the planets and several asteroids to one ...
uhoh's user avatar
  • 149k
3 votes
Accepted

Extended mission options for Juno?

Juno used a lot of propellant to get to (and capture at) Jupiter$^{1,2}$ so it does not have most of its propellant remaining. The main engine has been effectively decommissioned since orbit insertion,...
BrendanLuke15's user avatar
3 votes
Accepted

What will Lucy do for power during its first hour after launch?

A space probe like Lucy should be able to recover from an accidental misalignment of the solar cells to the sun. Such a misalignment may be caused by software errors or transient hardware errors. To ...
Uwe's user avatar
  • 49.1k
2 votes
Accepted

What were the challenges of an exploration mission to Trojan asteroids?

The first asteroid flyby missions were secondary missions: on its way to Jupiter, Galileo flew by a few asteroids that were close to its trajectory to Jupiter. The first mission that changed its ...
Hobbes's user avatar
  • 128k
2 votes
Accepted

How good are Lucy's cameras? Improvements since New Horizons?

I fear there is not much room left for substantial improvements of the resolution of L'LORRI. Optical limits for angular resolution of such a camera did not change during these 15 years. Weight limits ...
Uwe's user avatar
  • 49.1k
2 votes

Where is Lucy going? (asteroid mission)

I've accepted @Hobbes' new answer, but I'll leave this here as it does contain some additional info about this really intriguing trajectory. I haven't found much except the videos on the mission tour ...
uhoh's user avatar
  • 149k

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