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Questions tagged [juno]

Questions regarding the JUNO spacecraft, a NASA mission to Jupiter.

7votes
1answer
464views

Juno Deorbit in 2025?

Currently the Juno mission is extended until September 2025. Originally it was supposed to be deorbited into Jupiters atmosphere in 2021. Is known if they will extend it again? It will be sad to see ...
RAD6000's user avatar
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3votes
0answers
57views

Does Juno have enough fuel to push itself into a more elliptical orbit reaching out to Himalia? [duplicate]

Does the Juno probe have enough fuel to push itself into a highly elliptical orbit around Jupiter so that its apojove would be at Himalia's orbital distance to study Himalia better? Would a gravity ...
Nullnummer's user avatar
5votes
1answer
779views

Can Juno use Jupiter's gravity to alter its orbit so that it goes close to Himalia?

Himalia is the most massive and second largest non-Galilean moon of Jupiter. Yet, due to its distant orbit, we still don't have sharp images of it. Does Juno have enough fuel to alter its orbit with ...
Nullnummer's user avatar
5votes
1answer
196views

Extended mission options for Juno?

Juno has been given several mission extensions, the last (and most exciting) of which involves close passes to three of the Galilean satellites, also allowing them to trim its orbit every time, and ...
we'll see's user avatar
1vote
0answers
31views

Did JUNO adjust it's orbit in order to fly over Clyde's spot again?

Phys.org's Juno returns to 'Clyde's Spot' on Jupiter says: The feature is informally named for amateur astronomer Clyde Foster of Centurion, South Africa, who discovered it in 2020 using his own 14-...
uhoh's user avatar
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3votes
1answer
458views

Does the Juno spacecraft have an "open signal, by design"?

The click-bate title'd Space News article China quietly used NASA’s Jupiter probe to test its deep space network contains the quoted material below. Everybody listens to everybody else's spacecraft's ...
uhoh's user avatar
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44votes
4answers
11kviews

Is Jupiter bright enough to be seen in color by the naked eye from Jupiter orbit?

After seeing spectacular photographs of Jupiter, especially this one: I wondered if this would be visible with the naked eye from Jupiter orbit? Is the sunlight at Jupiter bright enough to see this in ...
Kaushik Ghose's user avatar
4votes
1answer
240views

Did Juno do a plane change circa October 2019? If so, by how much?

There are several reports in the news that the Juno spacecraft executed a very long propulsive maneuver so that it wouldn't pass through Jupiter's shadow. Apparently it would be in dark so long that ...
uhoh's user avatar
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33votes
1answer
4kviews

Why does this image of Jupiter look so strange?

The Universe Today's Yes, This is Actually the Shadow of Io Passing Across the Surface of Jupiter shows several images of Jupiter taken by JunoCam. Why does this image look so strange? Instead of an ...
uhoh's user avatar
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6votes
1answer
825views

Why did Cassini have reaction wheels but Galileo, Juno and New Horizons don't?

Three gas giant planet orbiters are mentioned in this answer: Cassini - Uses Reaction Wheels and thrusters Galileo - Primarily managed via spinning the spacecraft and thrusters. Juno - Just ...
uhoh's user avatar
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5votes
1answer
175views

Given that JunoCam is mainly for outreach, how bad is it as a scientific instrument?

According to Wikipedia's article on JunoCam (and I have seen other corroborating sources): JunoCam is not one of the probe's core scientific instruments; it was put on board primarily for public ...
Mark Foskey's user avatar
9votes
1answer
339views

When did deep-space probes start getting wrapped in germanium-coated film?

The NASA video Juno Engineering: Precision Matters shows the Juno spacecraft on what look like it might be a spin balance table after about 02:50 and there one can ...
uhoh's user avatar
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4votes
1answer
195views

Why was the image sensor design for Juno so... odd? [duplicate]

I attended the North Eastern Astronomy Forum this year and one of the speakers was mentioning that JunoCam will not be working because of the angle of the spacecraft. He was giving a lecture on what ...
Magic Octopus Urn's user avatar
2votes
0answers
99views

Discrepancy between Launch Vehicle Performance website on Atlas V 551 with Juno

I was looking at the Juno space probe which was launched in August 2011 onboard an Atlas V 551. In particular I was looking at https://elvperf.ksc.nasa.gov/Pages/News.aspx and using the performance ...
chuckstables's user avatar
2votes
2answers
295views

How, and How Well will Juno measure the effects of frame dragging? (GR effect due to Jupiter's mass & rotation)

This answer links to Spaceflight 101's One Week to Jupiter – NASA’s Juno Spacecraft en-route to Gas Giant after five-year Journey which says Also, Juno will put Einstein’s General Theory of ...
uhoh's user avatar
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