Yellow book is available (13.1.2012) - http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=49837.
Thanks, that's cool. I hope they can get approval and stay on time. 2022 isn't that far away in the scheme of things.
Thanks - I finally took a look at this and it is obvious that this would be an extremely interesting mission. A 'Galileo 2' (with the omission of Io though) in a way but with modern and far better instruments (and antenna!). I also get the impression that it would very nicely complement a possible NASA Europa mission since that mission now seems likely to focus almost exclusively on Europa while JUICE is more of a Jupiter System mission - it even includes nice coverage of Jupiter's polar region.
Wasn't a final decision about JUICE supposed to have been made yesterday? I hope they picked it...
rumors say that JUICE has been recommended for adoption as ESA's next large mission. nothing official so far...
great news if true!
It looks official enough (at least for me).
http://scienceblogs.com/catdynamics/upload/2012/04/esa_makes_a_choice/ESA-SPC.pdf
This is great news. Detailed information is available and from what I've read this mission is vastly superior to Galileo (even if its HGA had worked), thanks to modern instruments etc. (a difference of at least 30 years). In a way this is Jupiter's 'Cassini' - not as big but with more modern instruments.
The link mentions an ice penetrating radar.
I am agog with the possibilities. They also discuss the radiation requirements and seem confident the cumulative dose will be survivable.
I have another informations about L missions.
JUICE was recommended by SSAC and SSEWG groups, ATHENA by AWG group and NGO by PSWG group.
JUICE is preferred choice, but it isn't still 100% certain. Final (formal) decision by ESA members is expected on 2 May.
Fantastic news! I've very impressed by the high data rate (1.4Gbit/day) and the ability to operate 11 instruments on solar power at 5AU. Also glad to see that they are not at all relying on NASA or JAXA support for the mission, although I hope those agencies can support the mission in some way.
I was split between JUICE and LISA, but LISA or NGO or whatever it is called now would have been my favorite choice, for the Nobel prize science it would produce and for the technological challenges it implied, but still I'm quite happy with JUICE!
You can read the current presentation summarizing the mission from the proposal team at http://www.lpi.usra.edu/opag/mar2012/presentations/Friday/5_JUICE_Summary.pdf
Looks to me like they're planning something around 350-400 kbps - which would be spectacular from Jupiter. Can't find a data rate directly, but can infer it from the 1.4Gb in an 8hr pass.
Obviously, I think everybody here would have preferred it if ALL the missions were commissioned!
But if it is JUICE that's been picked, it sounds tremendous. Something to look forward to in a few years. Plus it will be good to finally get global coverage of Europa instead of the pinpricks of data that came from Galileo. Reading the Atlas of the Galilean Satellites is a rewarding but frustrating experience - like hearing a few seconds of Beethoven's Ninth or seeing a couple of square feet of Guernica...
No global Europa coverage from JUICE, except at low resolution- there are only two Europa flybys, both at similar longitudes. Still, with high data rates and an ice penetrating radar, these should provide a spectacular improvement in our understanding.
John
Arrival date 2030
Earth-Venus-Earth-Earth gravity assists. Tradeoff for having a big spacecraft with relatively moderate onboard delta-V capability.
Impressive imaging capabilities (from the yellow book mentioned in the first message of this thread):
A narrow angle framing camera with 1024x1024 pixels, 0.3° FOV and 12 filters that can also do pushbroom imaging. This is roughly two times Galileo's resolution (800x800 and 0.47°) and means that e.g. Io monitoring is possible in addition to Jupiter and icy satellite imaging. For comparison, Cassini's NAC has a FOV of 0.35° and 1024x1024 pixels.
A wide angle camera with 1024x1024 pixels, 117° FOV and 12 filters.
A hyperspectral pushbroom imager with 3.4° FOV, 0.4-5.2 μm spectral range and spectral sampling 2.8-5.0 nm, lines x arrays=640 x 480.
These specs are apparently not final though.
I did some quick comparison, what could be seen from JUICE, based on informations in Yellow book.
Image resolution comparison between older missions and JUICE's NAC camera:
http://3.bp.blogspot.com/-lQg12G1QLEM/T48D1Whz-eI/AAAAAAAAAL0/Np47WYVN0x8/s0/Imaging.jpg
And images of different bodies in Jovian system at resolutions obtainable by same camera:
http://2.bp.blogspot.com/-epvieLimtoE/T48EKNalfCI/AAAAAAAAAMM/aKUoBZs2PDg/s0/Juice.jpg
Some more http://my-favourite-universe.blogspot.com/2012/04/stavnata-mise-k-jupiteru-z-evropske.html are on my blog.
Another hurdle has been crossed - JUICE was approved unanimously by the ESA member state delegations today. News here:
http://www.bbc.co.uk/news/science-environment-17917102
Great news - on to Jupiter!
Same news from http://www.esa.int/esaCP/SEM9I4QWJ1H_index_0.html
I LOVE outer planet missions.
JUICE Spacecraft gets to Jupiter in 2030… I will be 77 that year and my grandsons will be 24. In the span of my life I will have seen PIONEERS, VOYAGERS, GALILEO, ULYSSES, CASSINI, NEW HORIZONS, JUNO (maybe a new Europa/ Titan/ Enceladus) encounters with Jupiter, Saturn, Uranus, Neptune, Pluto, and perhaps some Kuiper Belt objects. Ironically by 2030 we may have sensed the air of terrestrial type exoplanets. But physical travel to the bodies in our own solar system is still at a snail’s pace and outer planet missions (given chemical and low power electric propulsion) are still events for a generation. SIGH!
Yes the flight time with those gravity assists are considerable, and that even when launched by one Ariane 5.
Now that Ariane 5 ME will be available with the new upper stage, a shorter flight time might be available at the time for launch.
Yet of the about 5 ton to be sent to Jupiter, up to 3 tons might have to be propellant, some substantial part of that to be "juiced" for going into orbit around Ganymede.
And even though quite some of you appear to be pining for Europa, it is one really interesting moon, a magnetic field and where the grooved terrain is a sign of ice tectonics. And perhaps one liquid interior also, though not from current tidal heating so either from internal heat or preserved from the past when the interaction with Io and Europa were stronger, (the eccentricity is very low right now, but it might vary over quite long timescales - a possible connection to the magnetic field there, and Ganymede might even have auroras!)
Now with such a name they might have a perfect opportunity to get a sponsor, though it might be at the risk of getting the suggestion to have the space probe painted orange. *Ducks*
I'd be ok with orange but not sure what that would do to the spacecraft's thermal properties.
Agree that Ganymede is indeed worthy of this visit. As is Callisto. All the Galilean moons are exciting worlds in their own right.
Craig
I am amazed by how much solar panel technology has progressed in the last 30 years... Galileo had two RTG delivering 570 W at launch and 485 W at end of mission, JUICE will have solar panels delivering up to 636 W at end of mission. wow!
Ah! Instrument selection this month!
Let's see if the two instrument packages that I am involved in get selected.
January 2013 SSEWG and SSAC recommendations
February 2013 Preliminary technical KO of instrument Phase A
February 2013 SPC selection
I bet we already have contributors here imagining those 'Kodak moment' shots we all love.
A crescent Jupiter half risen above a craggy Ganymedean ridge with an Io suspended above the nightside perhaps . . .
Nice list of instruments. Doing all that w/o a scan platform like Cassini?
That's something that would be interesting to know - turning a spacecraft with big solar arrays is more difficult than turning a spacecraft like Cassini. It would also be extremely interesting to know something about the instrument specs.
anybody knows the difference between the Gravity & Geophysics of Jupiter and Galilean Moons and the Planetary Radio Interferometer & Doppler experiments?
they look like both radio tracking experiments
For PRIDE it says there is no spacecraft component, just the VLBI, so maybe 3GM is only the spacecraft component?
I do miss a micrometeoroid-experiment. http://www.lpi.usra.edu/meetings/ipm2012/pdf/1134.pdf not onboard?
Does anyone know what the Irish involvement is? The ESA press release gives no details and they haven't replied to my query yet.
Not sure about Irish part, but I can provide info about Czech involvement if someone's interested.
Google translation of recent Czech Space Office http://translate.google.com/translate?hl=cs&sl=cs&tl=en&u=http%3A%2F%2Fwww.czechspace.cz%2Fcs%2Fveda-a-vyzkum%2Fpristroje-ceskych-vedcu-poleti-jupiteru.
A Russian Ganymede lander in addition to the European JUICE orbiter ?
http://english.ruvr.ru/2013_03_11/Mission-to-Ganymede-more-tricky-than-expected/
Marc.
More detailed information on the instruments:
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=50073
In particular, the camera (JANUS) has a field of view of 1.3 degrees and carries 13 filters. This is a bigger field of view than the 0.3 degrees discussed earlier in this thread but the size in pixels is not shown (I'd love to see more detailed information on the camera specs). 2048x2048 wouldn't surprise me and would result in a resolution comparable to the Galileo camera. There's no mention of a wide angle camera and there's no information on whether pushbroom imaging is possible. One good thing about 1.3° vs. 0.3° is that global scale mosaics of Jupiter would have been a problem with a 0.3° FOV (huge number frames).
MAJIS is also a very interesting instrument - a hyperspectral imager from 0.4 to 5.7 microns with a top resolution of ~100 km for Jupiter and 25 m for Ganymede.
I found some additional information on the imaging experiment (JANUS) here:
http://meetingorganizer.copernicus.org/EPSC2013/EPSC2013-506.pdf
Not much new information on the camera itself though. The most interesting thing to me is that it has WAC imaging capabilities in addition to the 1.3° field of view and it's a framing camera. Reading between the lines it seems to me that the image size in pixels is ~2048x2048. This is not explicitly mentioned but the resolution numbers seem to imply something like this.
However, there is considerable information on the planned imaging coverage. In particular, compared to Galileo the coverage of Europa looks impressive to me since there are only two close Europa flybys.
More detailed information on the JUICE instruments is gradually becoming available. I recently found this interesting PDF document from the 45th LPSC (2014) conference:
http://www.hou.usra.edu/meetings/lpsc2014/pdf/2094.pdf
The most interesting new information to me is a list of the JANUS filters:
Airbus has won the 350.8 mln euro contract to build JUICE over Thales Alenia's competition.
http://spacenews.com/airbus-to-build-esas-jupiter-bound-juice-orbiter/
The JUICE project has started the http://sci.esa.int/juice/60393-1-juice-comes-in-from-extreme-temperature-test/. Hopefully with many more entries to come, so that it would not become such a stealth project like http://sci.esa.int/solar-orbiter/.
The JUICE probe will have two https://repos.cosmos.esa.int/socci/projects/SPICE_KERNELS/repos/juice/browse/kernels/ik/juice_jmc_v02.ti with https://www.materionbalzersoptics.com/de/maerkte/laser-space-und-defence/space/. Recently, it was revealed that the JMC would even get a https://microcameras.space/project/juice/ for https://nccr-planets.ch/platforms/technology-transfer/externship-within-mcse/. Spectacular views guaranteed!
OBTW, ESA has without much ado given up on the June 2022 launch opportunity. JUICE is https://www.cosmos.esa.int/web/juice/trajectory-browser for an August-September 2022 launch, which translates to no Mars flyby (but one Moon-Earth flyby), Jupiter Orbit Insertion some one and a half years, and Ganymede Orbit Insertion two years later than planned for a June 2022 launch.
Taking into account ESA's dumb way to communicate JUICE's launch delay to 2023 and that so far no new official https://www.cosmos.esa.int/web/spice/spice-for-juice has been published, I am wondering if ESA's PR people are trying to tease us with this sort of https://twitter.com/ESA_JUICE/status/1488871173194760199?cxt=HHwWjoC-qbKcxKkpAAAA
Unbelievable! Finally, someone with a Twitter account has got the cojones to ask ESA about the JUICE launch date and has even got a more or less useful https://twitter.com/cosmos4u/status/1495728151938404356: "...stay tuned!"
A new https://www.cosmos.esa.int/web/spice/spice-for-juice (CReMA 5.0b23.1) is published - launch on 5 April 2023. Earlier, August 2023 was mentioned as back-up launch date. By the way, is there an easy and convenient way to read or visualize Orbit kernels?
At least for ESA Missions there are official Cosmographia add-ons that make adding them pretty simple:
https://www.cosmos.esa.int/web/spice/cosmographia
Many thanks! https://www.cosmos.esa.int/web/spice/cosmographia gave me an error message when I tried (not very hard) to load the JSON file, however http://spice.esac.esa.int/webgeocalc/#StateVector works fine for me, with the help of the above example.
If I made no mistake,
Launch: 2023-04-05
Moon : 2024-08-19
Earth : 2024-08-20
Venus : 2025-08-31
Earth : 2026-09-28
Earth : 2029-01-17
JOI : 2031-07-21 (a year earlier than with the https://www.cosmos.esa.int/web/juice/crema-4.0b launch trajectory)
It's remarkable – almost comical – that after a quarter century, two missions are going to arrive for overlapping jovian system science at almost the same time. Now it looks like Europa Clipper will make a close pass of Europa before JUICE does but it's like watching a close horse race. And won't really matter; it'll be great to get the complementary science as both make observations with similar but non-identical instruments.
Interestingly, both missions' radar instruments have a mode at 9 MHz, which might make them a little less complementary than redundant in kind. Still, 46 radar tracks is better than 44.
Would be nice if the continuing presence continued more places than LEO. At a minimum Mars and Jupiter. But one can easily dream of the rest.
The inner jovian system has radiation to prohibit long lifetimes and the outer jovian system would exclude the targets of highest interest.
Future telescopes are going to have amazing resolution of Jupiter from Earth, so monitoring Jupiter from the vicinity of Callisto or farther wouldn't add much value, either.
Finally the latest (https://twitter.com/cosmos4u/status/1495728151938404356) The Making of JUICE https://www.youtube.com/watch?v=1Q0fCfsrMl0 has been released.
This https://www.aanda.org/articles/aa/full_html/2021/12/aa42600-21/aa42600-21.html should be still valid, because starting with the Venus swing-by the April 2023 launch trajectory is https://www.cosmos.esa.int/web/juice/trajectory-browser with the September 2022 launch trajectory.
Edit: New https://www.sciencedirect.com/science/article/abs/pii/S0032063322000629 on the "analysis of possible asteroids flyby for the ESA JUICE mission", albeit behind paywall.
After a month of silence, a JUICE science instrument https://twitter.com/GALA_JUICE/status/1546475961088090119?cxt=HHwWjoCxpa3sl_YqAAAA informs us that "[t]he structural tests of the [JUICE] spacecraft are finished as well as the reduced functional tests afterwards. GALA and all other instruments are nominal." -- ESA's public outreach is so broken!
Edit (2022-07-19): Oh now, JUICE's contractor https://twitter.com/AirbusSpace/status/1549304847564001281?cxt=HHwWgsC-_ZujnoArAAAA a short (58 sec) video about the completed vibration and acoustic tests.
https://twitter.com/ESA_JUICE/status/1627662102138863617?cxt=HHwWgoDSxdyDz5YtAAAA on the launch preparation of JUICE on a controversial social-media website, although I think that it would be far easier, and a better idea to simply publish the JUICE launch campaign newsletter, as fortunately the https://np.cosmos.ru/novosti did during the https://np.cosmos.ru/images/pdf/newsletter_01_27_04_2018.pdf in 2018.
It is easy to search the ESA website... Trying https://www.esa.int/esearch?q=JUICE yelds many, many entries.
Here is one of the latest
https://www.esa.int/Enabling_Support/Space_Transportation/Ariane/Juice_on_final_stretch_for_launch_to_Jupiter
Fernando
PS - or subscribe the news topic. Cheers
https://www.linkedin.com/posts/alessandro-a-a94b155_juice-va260-juicemission-activity-7042286857493102592-v9jS?trk=public_profile_share_view
After all these years launch day has arrived!!! T-0 scheduled for 1215 GMT.
Watch live here: https://youtube.com/watch?v=ZD9n9HLwswQ
More info: https://www.esa.int/.../How_to_follow_the_Juice_launch_live
GO JUICE!!!
Sigh- not today. Scrubbed due to lightning risk. Will try again tomorrow, one minute earlier.
John
So far so good. I have probably not been this excited about a planetary spacecraft launch since 1997 (Cassini).
Spacecraft separation and JUICE is on its way!
Both solar arrays fully deployed, a major milestone.
Great news!
Bjorn's mention of 1997 helps me frame how I, and I'm sure some others see this: Since the Galileo Orbiter, that mission's shortcomings, notably the extremely limited data rate, have created the feeling that we needed a follow-up to replace the thorough study of the Galileans that we lost. Now, though it will arrive 35 years (!) after Galileo did, this is going to be a major part of filling that gap. Combined with Europa Clipper, JUICE will far more than replace the observations we lost back in 1996-2000 as far as the three outer Galileans go.
But for now, we wait some more!
I remember, back in 2007 I first posted here about a possible ESA/NASA collaboration to send several probes to explore further the Jovian system. At that time the project was called Laplace.
http://www.unmannedspaceflight.com/index.php?showtopic=4637
Most of reactions were pessimistic (if not sarcastic).
A lot happened since and there were many changes, but finally JUICE is on its way to the Jovian system and Europa Clipper will follow soon.
These will be 2 amazing missions.
Thanks for linking to the history, Marc.
While some ambitions have been postponed, the combination of Juno, JUICE, and Europa Clipper will put us one Io mission away from an excellent survey of the jovian system, at last, and ESA is on the way to doing their part.
That was quick - images from the Juice Monitoring Cameras (JMC) have already been released. Juice's first 'selfies': https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_sends_first_selfies_from_space
Hopefully these cameras stick around until the tour. They make great public relations cameras since they help to provide a “you are there” perspective which the science camera can sometimes lack do the narrow field of view.
According to this https://www.esa.int/ESA_Multimedia/Videos/2023/01/Juice_comes_to_life_artist_s_impression, the RIME antenna should already be deployed. Unfortunately, ESA has largely fallen dumb, since the fine launch coverage, so who knows what's going on.
12 days after launch, ESA still continues to hold on tightly to its JUICE information embargo, however, in the Planetary Science Archive (PSA) has recently appeared a bunch of https://archives.esac.esa.int/psa/#!Table%20View/JMC=instrument, albeit still 'On Hold'. A large quantity of images were made on 2023-04-19, probably the day of the RIME antenna deployment. At the meantime the magnetometer boom should also already be deployed, according to this pre-launch https://www.esa.int/ESA_Multimedia/Videos/2023/01/Juice_comes_to_life_artist_s_impression.
PS. RADiation-hard Electron Monitor (https://archives.esac.esa.int/psa/#!Table%20View/RADEM=instrument) and High Accuracy Accelerometer (https://archives.esac.esa.int/psa/#!Table%20View/HAA=instrument) data are also flowing into the PSA.
The magnetometer boom has been deployed: https://www.esa.int/ESA_Multimedia/Images/2023/04/Juice_s_first_taste_of_science_from_space
Magnetometer boom deployment on 2023-04-21 at 14:29:38 UT, early on the 8th day of the expedition, so the published pre-launch https://www.esa.int/ESA_Multimedia/Videos/2023/01/Juice_comes_to_life_artist_s_impression isn't very valid. Successful deployment has been made public five days after the event, strikingly, the https://www.esa.int/ESA_Multimedia/Images/2023/04/Juice_s_first_taste_of_science_from_space doesn't mention the https://spacetech-i.com/news/news-details/spacetech-antenna-for-juice-rime-installed-and-ready-to-fly, although successful deployment of the solar arrays and the medium gain antenna (MGA) is mentioned, thus RIME antenna status so far unknown.
RIME didn’t fully deployed : https://www.esa.int/Science_Exploration/Space_Science/Juice/Work_continues_to_deploy_Juice_RIME_antenna
Is RIME all or nothing? If it ends stuck at 1/3 deployed, is it still somewhat usable?
The sun-shadow approach to unstick the problem would seem to be most effective, potentially, when JUICE is closest to the Sun, which will be six months from now around the time of its Venus flyby. So I guess that the time for greater worry would be if it remains stuck after that opportunity.
Partial deployment would certainly impact resolution at the very least, but whether or not partial deployment would permit useful operation depends upon further details which don't seem to be available yet. How much of the antenna is now perpendicular to the instrument's "look" direction; how much noise would be returned from the remaining portions of it? Hopefully we won't have to face those questions. If worse comes to worst, it remains true that Europa Clipper will also provide the opportunity to study Europa thorough with similar capability, and some representative ground tracks at Ganymede and Callisto.
RIME antenna successfully deployed!!
https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_s_RIME_antenna_breaks_free
Good news. The RIME antenna is free
See ESA announcement at https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_s_RIME_antenna_breaks_free
PS: well done Bjorn! I was fiddling with the mobile's keybord and did not notice your post
Bravo! May that pin never be seen again!
(And the advantage of having engineering cameras is demonstrated once more...)
They deserve Champagne, not only free juice 🤦♂️
If you count Lucy's solar panels, and Juno's valves, all four orbiters that have been sent to Jupiter (and its Trojans) have had a part stuck during deployment. Luckily, all of these have had successful workarounds and a complete resolution in this case, but that four out of four number is eyebrow-raising.
I think you may have read a criticism in my comment that I didn't intend. Of course very complicated projects have problems that are often possible to overcome.
In this case, the similarity of the problems and the same target simply seemed curious. Lots of missions have lots of different issues, but here three had issues with something external failing to extend correctly, and all with the same target. It's certainly not pejorative regarding the teams, and as the problems with Galileo, Lucy, and JUICE all occurred so long before arrival at Jupiter, there's no casual relationship there.
It's also four different teams, two agencies, different decades… obviously no one pointing the blame at anyone.
It just seemed an odd comment to make - it appeared you were trying to infer there was something about the target that had something to do with the issues.
Understood. No, the fact that these have happened so far from Jupiter makes that definitely coincidental. If they'd all happened in Jupiter's radiation belts, that'd be another thing.
Likewise, the Soviets had rotten luck with Mars missions, but some of them occurred at/near launch. Mars didn't cause that, but the mishaps randomly piled up that way. So it goes.
Jupiter is the most distant target planet for which probes can manage on solar power without RTG's. So spacecraft going there need big panels, intricately folded prior to launch. Likewise I am guessing that the communications antennae need to be larger relative to the spacecraft itself than for probes heading to the inner planets and Mars. So the engineering challenges involved in powering and communicating with Jupiter-bound payloads are bound to be daunting.
If we're talking Jupiter orbiter coincidences, I'd like to request a Shoemaker-Levy comet impact. TIA!
Trying to be neutral on the subject, you'd think by now mechanical engineering could design some 99.999% reliable release mechanisms...
What does it tell you about the scope and scale of the design problems and the challenges these unique environments present that - across different agencies, different contractors and both public and private sector projects.........problems of this kind emerge from time to time.
Fascinating reading here - https://ntrs.nasa.gov/api/citations/20210020397/downloads/Alphonzo%20Stewart-%20Final%20Paper.pdf
Bonsoir,
Deployment of Juice instruments completed. Details of operations.
https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_deployments_complete_final_form_for_Jupiter
PEP-Hi (JENI and JoEE) commissioning was https://www.linkedin.com/posts/herman-andersson-5a697418_joeejeni-apl-civil-space-activity-7076286570923761664-H4XR successfully completed on 14 June. PEP-Lo (JDC, JEI, JNA, NIM) https://web.archive.org/web/20230626060601/https://www.linkedin.com/posts/herman-andersson-5a697418_pep-lo-commissioning-1-the-four-european-activity-7069320135357997056-pURa is planned to be completed on 30 June.
It's a pity that https://www.linkedin.com/posts/ali-ravanbakhsh-8ba090a2_esajuice-activity-7065232678844788736-R6qo and https://www.linkedin.com/posts/alessandro-a-a94b155_the-importance-of-testing-the-previous-post-activity-7014663822435065856--uX8 information are hidden on various social media websites and not centrally collected in an ESA blog or something.
Nice story on the RIME deployment anomaly https://www.esa.int/Science_Exploration/Space_Science/Juice/Solving_the_RIME_deployment_mystery
A superb story of ingenuity and success indeed. Thanks for posting the link, John!
On 3 July the commissioning of the PEP instrument package was successfully completed, albeit the last sentence of the https://www.mynewsdesk.com/se/irf/pressreleases/nu-har-aeventyret-i-rymden-boerjat-foer-det-svenska-instrumentet-particle-environment-package-ombord-paa-juice-slash-now-the-adventure-in-space-has-began-for-the-swedish-instrument-particle-environment-package-on-board-juice-3263888 sounds somewhat suspicious.
JUICE is currently in https://web.archive.org/web/20230808062040/https://www.linkedin.com/posts/jan-bergman-16a2631b_where-is-juice-now-activity-7092935357477888000-T73v.
I don't know any specifics here, but outgassing can take a long time to die away completely (e.g. I think there was measurable thrust from ougassing on MSL for a couple of weeks after launch), and you dont want to power up high voltage systems if there is a residual atmosphere or arcing may occur. So this may just be unhurried prudence. I think some of the covers on Cassini's instruments were only opened/jettisoned several years after launch, after the inner solar system flybys were completed.
Spin-stabilized cropdusting if you're being polite.
On Friday, Nov. 17, starting at around 15:16 UTC, https://www.cosmos.esa.int/web/juice will perform a Deep Space Manoeuvre (DSM) lasting about 43 minutes and imparting a change in speed of about 200m/s to the spacecraft, according to http://spice.esac.esa.int/webgeocalc.
The maneuver went well, according to today's news from ESA.
JUICE is now positioned for a first: a double Moon-Earth gravity assist flyby on August 2024.
Link to ESA article: https://www.esa.int/Enabling_Support/Operations/Juice_burns_hard_towards_first-ever_Earth-Moon_flyby
Fernando
Does Juice have any bonus targets on way to Jupiter?
I haven't been able to find any mentions of possible targets.
Don't you count Earth as a bonus target?
There's also asteroid 223 Rosa, possibly. But if so, that's six years away.
If so, it's quite a large one – only three larger asteroid belt objects have been visited by spacecraft. Rosa is a little smaller than Lutetia.
https://www.nasaspaceflight.com/2023/03/juice-project-manager/
Today at 15:30 UTC, JUICE is going to perform the second, with a duration of about 134 seconds and a change in speed of approximately 10 m/s much smaller second part of the https://www.esa.int/Enabling_Support/Operations/Juice_burns_hard_towards_first-ever_Earth-Moon_flyby (DSM), according to http://spice.esac.esa.int/webgeocalc/#NewCalculation.
https://juicesoc.esac.esa.int/tm/pcheckout?id=PCW1 (PCW1) apparently ended yesterday. Will ESA or the instrument teams give us an update on payload status, I wonder?
https://www.youtube.com/watch?v=5g3Kln6RRV0&list=PLPXeplhp1d001P7K0kCCxdrS3E42gf0Tf
Mark the date: July 17, 2032, a double spacecraft flyby of Europe!
At midnight between April 19 and 20, JUICE performed a small TCM (Trajectory Correction Maneuver), imparting a change of speed relative to the Sun of about 0.7 m/s, according to http://spice.esac.esa.int/webgeocalc/#NewCalculation.
In about one month (on August 19-20) JUICE will fly by the Moon and then Earth.
The double flyby, a first of its kind, will set JUICE on a course to Jupiter via a "shortcut" past Venus.
See the full information at https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_s_lunar-Earth_flyby_all_you_need_to_know
Early tomorrow morning, at around 2024-07-22T03:00Z, JUICE will perform a small trajectory control manoeuvre (1.8 cm/s), according to http://spice.esac.esa.int/webgeocalc/#NewCalculation.
ESA has released an animation of JUICE's double flyby.
Here is the link:
https://www.esa.int/ESA_Multimedia/Videos/2024/07/Juice_returns_for_a_lunar-Earth_flyby
Fernando
According to the latest https://juicesoc.esac.esa.int/tm/pcheckout?id=LEGA, JUICE will perform a two-hour long joint experiment together with https://haarp.gi.alaska.edu/ starting about 14 minutes after closest Earth approach. EDIT: A https://pparc.gp.tohoku.ac.jp/20240810_juice-lega/ (in Japanese) of the experiments conducted with JUICE's RPWI (Radio and Plasma Wave Instruments) during the flyby.
By now the Lunar flyby closest approach should have occurred. There's a live event in 20 minutes to present images (?)
https://www.youtube.com/live/ZoodtR-46Ms
Live event is in progress. Flyby has happened. JUICE taken Images are being received and displayed. JUICE which is now (21:40 UTC aprox) about 5000 kms away from the Moon.
Fernando
First image is from navigation camera, just before eclipse, and is a not very exciting starfield.
Selfies from an engineering camera (I think) coming through now...
Last image from JMC1 before handover from New Norcia, from ~1h ago, showing a sliver of lunar terminator with blockage from a radiator (see https://www.esa.int/ESA_Multimedia/Images/2023/05/A_guide_to_Juice_s_monitoring_cameras); contrast-stretched by me.
Images are coming down and being decoded.
https://x.com/aang254/status/1825663214992126346
Colour engineering camera images. Looking forward to getting this for Venus around this time next year.
This ESA page showing an interactive and labeled version of the first image of Hungry4info's post #134 may be of interest to some members.
https://www.esa.int/ESA_Multimedia/Images/2024/08/Juice_snaps_Moon_en_route_to_EarthFernando
JUICE Monitoring Camera (JMC) images of recent LEGA are available from the https://psa.esa.int/psa (PSA). Where are the avid image processing people of which this forum has so plenty. I am expecting many coloured and animated images. Needed calibration information has become available https://microcameras.space/project/juice/.
https://www.esa.int/Science_Exploration/Space_Science/Juice/First_views_from_Juice_s_science_camera
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