Author Topic: ESA - JUICE updates  (Read 11422 times)

Offline Star One

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Re: ESA - JUICE updates
« Reply #20 on: 06/19/2018 07:43 pm »
JUICE THERMAL DEVELOPMENT MODEL AND THE SUN SIMULATOR

A view of the Juice thermal development model inside the Large Space Simulator at ESA's technical heart in the Netherlands.

Juice, or the Jupiter Icy Moon Explorer, is ESA's future mission to explore the Solar System's largest planet and its ocean-bearing moons. Planned for launch in June 2022, it will embark on a seven year cruise that will make use of several flybys – of Earth, Venus, Earth, Mars, and again Earth – before leaving the inner Solar System for Jupiter.

In order to ensure that the spacecraft will survive the extreme temperature variations it will experience along the journey, a thermal verification test was completed in May 2018.

The spacecraft model, wrapped in multi-layer insulation, is visible in the foreground, while the high-energy lamps and mirrors of the Sun simulator can be seen in the upper part of the frame. The Sun simulator was used to heat the Sun-facing side of the spacecraft model to around 200ºC. Meanwhile the internal temperature of the vacuum chamber was lowered to -180ºC by thermal shrouds filled with liquid nitrogen to reproduce the cold conditions of the sides that will face away from the Sun.

This hot phase was followed by the cold phase, which simulated the low-temperature environment at Jupiter by maintaining the frigid conditions inside the chamber and switching off the Sun simulation lamps.

More about the testing campaign: Juice comes in from extreme temperature test

http://m.esa.int/spaceinimages/Images/2018/06/Juice_thermal_development_model_and_the_Sun_simulator

Offline AegeanBlue

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Re: ESA - JUICE updates
« Reply #21 on: 12/10/2018 08:15 pm »
INASCO Hellas delivered the JUICE Spacecraft Engineering Model Structure (JUICE SEMS) to Airbus in August. Now idea why it is news now on the Greek internet. I have not found an English language article, but this in Greek is a good one:

https://www.defence-point.gr/news/nea-elliniki-viomichaniki-symmetochi-se-diastimiki-apostoli-tis-ee-ston-dia


Offline bolun

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Re: ESA - JUICE updates
« Reply #22 on: 12/14/2018 02:27 pm »
#4: JUICE ENGINEERING MODEL READY FOR TESTING

11 December 2018 09:52

The JUICE engineering model spacecraft test readiness review was completed successfully on 2 October, and the first engineering model instruments are now being delivered and tested.

http://sci.esa.int/juice/60968-4-juice-engineering-model-ready-for-testing/

Image credit: Airbus Defence and Space

Offline bolun

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Re: ESA - JUICE updates
« Reply #23 on: 02/06/2019 11:49 am »
Juice’s instruments

ESA’s Jupiter Icy Moons Explorer, Juice, will carry the most powerful remote sensing, geophysical, and in situ payload complement ever flown to the outer Solar System.

3GM, or the Gravity & Geophysics of Jupiter and Galilean Moons, is a radio package comprising the KaT (Ka transponder), USO (ultrastable oscillator) and HAA (High Accuracy Accelerometer). The experiment will study the gravity field at Ganymede, the extent of the internal oceans on the icy moons, and the structure of the neutral atmosphere and ionosphere of Jupiter and its moons.

Gala, the GAnymede Laser Altimeter will study the tidal deformation of Ganymede and the topography of the surfaces of the icy moons

JANUS, an optical camera system, will study global, regional and local features and processes on the moon, as well as map the clouds of Jupiter. It will have a resolution up to 2.4 m on Ganymede and about 10 km at Jupiter.

J-MAG is the Juice magnetometer; it is equipped with sensors to characterise the Jovian magnetic field and its interaction with that of Ganymede, and to study the subsurface oceans of the icy moons.

MAJIS is the Moons and Jupiter Imaging Spectrometer. It will observe cloud features and atmospheric constituents on Jupiter, and will characterise ices and minerals on the icy moon surfaces.

PEP is the Particle Environment Package. It comprises a package of sensors to characterise the plasma environment of the Jupiter system.

RIME, the Radar for Icy Moons Exploration, is an ice-penetrating radar to study the subsurface structure of the icy moons down to a depth of around nine kilometres.

RPWI, the Radio and Plasma Wave Investigation, will characterise the radio emission and plasma environment of Jupiter and its icy moons using a suite of sensors and probes.

SWI, the Sub-millimeter Wave Instrument, will investigate the temperature structure, composition and dynamics of Jupiter’s atmosphere, and the exospheres and surfaces of the icy moons.

UVS is a UV imaging spectrograph to characterise the composition and dynamics of the exospheres of the icy moons, to study the Jovian aurorae, and to investigate the composition and structure of the planet’s upper atmosphere.

The mission will also carry out a Planetary Radio Interferometer & Doppler Experiment (PRIDE), which will use the standard telecommunication system of the spacecraft, together with radio telescopes on Earth to perform precise measurements of the spacecraft position and velocity to investigate the gravity fields of Jupiter and the icy moons.

More about Juice’s instruments

https://www.esa.int/spaceinimages/Images/2019/02/Juice_s_instruments

Image credit: ESA/ATG medialab

Offline vjkane

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Re: ESA - JUICE updates
« Reply #24 on: 02/06/2019 02:47 pm »

Offline Star One

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ESA - JUICE updates
« Reply #25 on: 02/06/2019 03:00 pm »
YouTube link.

Juice’s Jovian Odyssey

 
« Last Edit: 02/06/2019 03:16 pm by Star One »

Online jacqmans

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Re: ESA - JUICE updates
« Reply #26 on: 03/21/2019 11:24 am »
Juice’s magnetometer boom

A test version of the 10.5-m long magnetometer boom built for ESA’s mission to Jupiter, developed by SENER in Spain, seen being tested at ESA’s Test Centre in the Netherlands, its weight borne by balloons.

The flight model will be mounted on the Juice spacecraft – Jupiter Icy Moons Explorer – due to launch in 2022, arriving at Jupiter in 2029. The mission will spend at least three years making detailed observations of the giant gaseous planet Jupiter and three of its largest moons: Ganymede, Callisto and Europa.

The Juice spacecraft will carry the most powerful remote sensing, geophysical, and in situ payload complement ever flown to the outer Solar System. Its payload consists of 10 state-of-the-art instruments.

This includes a magnetometer instrument that the boom will project clear of the main body of the spacecraft, allowing it to make measurements clear of any magnetic interference. Its goal is to measure Jupiter’s magnetic field, its interaction with the internal magnetic field of Ganymede, and to study subsurface oceans of the icy moons.

The deployment of this qualification model boom has been performed before and after simulated launch vibration on Test Centre shaker tables to ensure it will deploy correctly in space. Since the boom will deploy in weightlessness, three helium balloons were used to help bear its weight in terrestrial gravity.

Credits: ESA–G. Porter

Offline zubenelgenubi

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Re: ESA - JUICE updates
« Reply #27 on: 04/03/2019 03:03 pm »
Cross-post!
Reviving this old thread from when the program was officially started to mark a milestone: CDR passed with the Structural Test (STM) and Engineering Models (EM); Flight Model (FM) construction started!


https://twitter.com/esascience/status/1113446415341096962
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Offline zubenelgenubi

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Re: ESA - JUICE updates
« Reply #28 on: 04/19/2019 06:13 pm »
Cross-post:

Quote
JUICE (2022) may be switched to [an early] the second Ariane 64 launch.  [Conditional below.]

Quote from: an ESA director
Neuenschwander said ESA wants to have Ariane 64 as an option for its Jupiter Icy Moons Explorer, or JUICE, mission, but would only consider launching the science mission on the new rocket after seeing a commercial launch. JUICE is currently scheduled to launch in 2022 on an Ariane 5.

https://spacenews.com/arianegroup-starting-ariane-6-production-after-new-esa-agreement/
« Last Edit: 04/19/2019 06:47 pm by zubenelgenubi »
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Offline redliox

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Re: ESA - JUICE updates
« Reply #29 on: 04/19/2019 08:33 pm »
Cross-post:

Quote
JUICE (2022) may be switched to [an early] the second Ariane 64 launch.  [Conditional below.]

Quote from: an ESA director
Neuenschwander said ESA wants to have Ariane 64 as an option for its Jupiter Icy Moons Explorer, or JUICE, mission, but would only consider launching the science mission on the new rocket after seeing a commercial launch. JUICE is currently scheduled to launch in 2022 on an Ariane 5.

This could be intriguing.  The OPAG is going to include updates on JUICE, so there's a chance they could mention how either a Ariane 5 or 6 could influence the mission's trajectory.
"Let the trails lead where they may, I will follow."
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Offline Star One

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ESA - JUICE updates
« Reply #30 on: Today at 08:27 am »
Cross-post:

Quote
JUICE (2022) may be switched to [an early] the second Ariane 64 launch.  [Conditional below.]

Quote from: an ESA director
Neuenschwander said ESA wants to have Ariane 64 as an option for its Jupiter Icy Moons Explorer, or JUICE, mission, but would only consider launching the science mission on the new rocket after seeing a commercial launch. JUICE is currently scheduled to launch in 2022 on an Ariane 5.

https://spacenews.com/arianegroup-starting-ariane-6-production-after-new-esa-agreement/


What advantage would there be to the Juice mission to this change in launchers? As to me it just looks like sticking an important launch on a relatively untried launcher because it is lacking commercial payloads.
« Last Edit: Today at 08:28 am by Star One »

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