JUNO - Atlas V 551 - Canaveral SLC-41 - 05.08.2011

[АниКей]

ronatu пишет:
pekoMeHgyi0 nocMoTpeTb...

http://investigator.org.ua/news/110977/
Космический зонд показал, как выглядит Земля, если лететь с Юпитера                                                12.12.2013 18:34                                                               

Фото: НАСА

 

НАСА обнародовало потрясающее видео нашей планеты, сделанное с приближающегося из космоса зонда Juno.

Juno летит исследовать Юпитер. Аппарат стартовал  в 2011 году, добрался до пояса астероидов, который находится за орбитой Марса. Сделав там вираж  под действием гравитационных сил,  направился назад — во внутреннюю часть Солнечной системы, пишет КП.

В октябре 2013 года Juno подлетел к Земле. То есть, вошел в новый вираж, который уже выведет непосредственно к Юпитеру. Туда аппарат будет буквально заброшен, как из пращи, за счет силы притяжения нашей планеты. Скорость его при этом возрастет почти до 8 километров в секунду.

И вот, находясь примерно в миллионе километров от Земли, Juno начал снимать процесс сближения. Виден голубой шарик, который постепенно увеличивается в размерах. В кадр попала и Луна. Она — коричневая.

«Да, именно так  выглядит Земля, если смотреть на нее из приближающего космического корабля», — говорит  Скотт Болтон- один из руководителей миссии  Juno из Юго-западного НИИ.

Прибытие к Юпитеру ожидается в июле 2016 года.

Источник: http://investigator.org.ua/news/110977/

© Центр журналистских расследований

[che wi]

As of May 2, Juno was approximately 279 million miles (449 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 25 minutes. Juno is currently traveling at a velocity of about 12 miles (20 kilometers) per second relative to the sun. Velocity relative to Earth is about 29 miles (47 kilometers) per second. Juno has now traveled 1.3 billion miles (2.1 billion kilometers, or 14 AU) since launch.

The Juno spacecraft is in excellent health and is operating nominally

Juno is now closer to Jupiter than it is to the sun. The spacecraft is cruising in the main asteroid belt as the operations team busily makes preparations for Jupiter arrival just over two years from now.

http://www.nasa.gov/mission_pages/juno/main/index.html

[che wi]

Juno is 3 AU from the Sun! (its 5.44 AU at Jupiter)

https://twitter.com/NASAJuno/status/478659130245144576/photo/1

[instml]

Mission Status

Where is Juno?

As of December 15, 1014, Juno is approximately 350 million miles (565 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 31.4 minutes. Juno is traveling at a velocity of approximately 28,243 miles per hour (12.62 kilometers per second) relative to the sun, and 43,236 miles per hour (19.33 kilometers per second) relative to Earth. Juno has now travelled 1.49 billion miles (2.40 billion kilometers, or 16.05 AU) since launch, and has another 267 million miles (430 million kilometers or 2.88 AU) before entering Jupiter's orbit in July 2016. The Juno spacecraft remains in excellent health and is operating nominally.
Visualize Juno's current position and velocity using NASA's Eyes on the Solar System 3D interactive or the NASA/JPL Solar System Simulator.

http://www.nasa.gov/mission_pages/juno/main/

[che wi]

Mission Status

As of April 3, 2015, Juno is approximately 353 million miles (568 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 32 minutes. Juno is traveling at a velocity of approximately 24,000 miles per hour (about 11 kilometers per second) relative to the sun, and 64,000 miles per hour (about 29 kilometers per second) relative to Earth. Juno has now travelled 1.56 billion miles (2.51 billion kilometers, or about 16.8 AU) since launch, and has another 199 million miles (321 million kilometers or 2.15 AU) before entering Jupiter's orbit.

The Juno spacecraft remains in excellent health and is operating nominally.

http://missionjuno.swri.edu/news/juno_status_05032015

[che wi]

Остался год до прибытия.
Утвердили некоторые изменения в план полёта.

Following a detailed analysis by the Juno team, NASA recently approved changes to the mission's flight plan at Jupiter. Instead of taking 11 days to orbit the planet, Juno will now complete one revolution every 14 days. The difference in orbit period will be accomplished by having Juno make a slightly shorter engine burn than originally planned.

The revised cadence will allow Juno to build maps of the planet's magnetic and gravity fields in a way that will provide a global look at the planet earlier in the mission than the original plan. Over successive orbits, Juno will build a virtual web around Jupiter, making its gravity and magnetic field maps as it passes over different longitudes from north to south. The original plan would have required 15 orbits to map these forces globally, with 15 more orbits filling in gaps to make the map complete. In the revised plan, Juno will get very basic mapping coverage in just eight orbits. A new level of detail will be added with each successive doubling of the number, at 16 and 32 orbits.

The slightly longer orbit also will provide a few extra days between close approaches to the planet for the team to react to unexpected conditions the spacecraft might experience in the complex environment very close to Jupiter.

"We have models that tell us what to expect, but the fact is that Juno is going to be immersed in a strong and variable magnetic field and hazardous radiation, and it will get closer to the planet than any previous orbiting spacecraft," said Bolton. "Juno's experience could be different than what our models predict -- that's part of what makes space exploration so exciting."

The revised plan lengthens Juno's mission at Jupiter to 20 months instead of the original 15, and the spacecraft will now complete 32 orbits instead of 30. But the extra time doesn't represent bonus science for the mission -- rather, it's an effect of the longer orbital period and the change in the way Juno builds its web around Jupiter. Basically, it will take Juno a bit longer to collect the full data set the mission is after, but it will get a low-resolution version of its final products earlier in the mission than originally planned.

NASA also recently approved a change to the spacecraft's initial orbit after Jupiter arrival, called the capture orbit. The revised plan splits the originally planned, 107-day-long capture orbit into two. The new approach will provide the Juno team a sneak preview of their science activities, affording them an opportunity to test the spacecraft's science instruments during a close approach to Jupiter before beginning the actual science phase of the mission. The original scenario called for an engine burn to ease Juno into Jupiter orbit, followed by a second burn 107 days later, putting the spacecraft into an 11-day science orbit. In the updated mission design, the orbit insertion burn is followed 53.5 days later by a practice run at Jupiter with science instruments turned on, followed by another 53.5-day orbit before the final engine burn that places Juno into its new, 14-day science orbit.

http://missionjuno.swri.edu/news/juno_status_07072015

[che wi]

Mission Status

As of August 21, 2015, Juno is approximately 555 million miles (893 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 50 minutes. Juno is traveling at a velocity of approximately 85,000 miles per hour (about 38 kilometers per second) relative to Earth, and 19,800 miles per hour (about 9 kilometers per second) relative to the Sun. Juno has now travelled 1.63 billion miles (2.63 billion kilometers, or 17.57 AU) since launch, and has another 126 million miles (203 million kilometers, or 1.36 AU) before entering Jupiter's orbit.

The Juno spacecraft remains in excellent health and is operating nominally.

http://www.missionjuno.swri.edu/news/juno_status_08212015

[che wi]

Запись вчерашнего выступления Стивена Левина о миссии
http://www.ustream.tv/recorded/77089516/

[che wi]

Mission Status

As of Nov. 20, 2015, Juno is approximately 522 million miles (841 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 47 minutes.

Juno is traveling at a velocity of approximately 68,000 miles per hour (about 30 kilometers per second) relative to Earth, 18,000 miles per hour (about 8 kilometers per second) relative to the Sun, and 12,000 miles per hour (about 5 kilometers per second) relative to Jupiter. Juno has now travelled 1.67 billion miles (2.69 billion kilometers, or 18.01 AU) since launch, and has another 85 million miles to go (137 million kilometers, or 0.92 AU) before entering orbit around Jupiter.

The Juno spacecraft remains in excellent health and is operating nominally.

https://www.missionjuno.swri.edu/news/status-20151120

[che wi]

Mission Status

As of Jan. 8, 2016, Juno is approximately 457 million miles (735 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 41 minutes.

Juno is traveling at a velocity of approximately 56,000 miles per hour (about 25 kilometers per second) relative to Earth, 17,000 miles per hour (about 7.6 kilometers per second) relative to the Sun, and 12,000 miles per hour (about 5.4 kilometers per second) relative to Jupiter. Juno has now travelled 1.69 billion miles (2.73 billion kilometers, or 18.23 AU) since launch, and has another 64 million miles to go (104 million kilometers, or 0.70 AU) before entering orbit around Jupiter.

The Juno spacecraft remains in excellent health and is operating nominally.

[che wi]

NASA's Juno Spacecraft Breaks Solar Power Distance Record

NASA's Juno mission to Jupiter has broken the record to become humanity's most distant solar-powered emissary. The milestone occurred at 11 a.m. PST (2 p.m. EST, 19:00 UTC) on Wednesday, Jan. 13, when Juno was about 493 million miles (793 million kilometers) fr om the sun.

The previous record-holder was the European Space Agency's Rosetta spacecraft, whose orbit peaked out at the 492-million-mile (792-million-kilometer) mark in October 2012, during its approach to comet 67P/Churyumov-Gerasimenko.

"Juno is all about pushing the edge of technology to help us learn about our origins," said Scott Bolton, Juno principal investigator at the Southwest Research Institute in San Antonio. "We use every known technique to see through Jupiter's clouds and reveal the secrets Jupiter holds of our solar system's early history.  It just seems right that the sun is helping us learn about the origin of Jupiter and the other planets that orbit it."

Спойлер

Launched in 2011, Juno is the first solar-powered spacecraft designed to operate at such a great distance from the sun. That's why the surface area of solar panels required to generate adequate power is quite large. The four-ton Juno spacecraft carries three 30-foot-long (9-meter) solar arrays festooned with 18,698 individual solar cells. At Earth distance from the sun, the cells have the potential to generate approximately 14 kilowatts of electricity. But transport those same rectangles of silicon and gallium arsenide to a fifth rock from the sun distance, and it's a powerfully different story.

"Jupiter is five times farther from the sun than Earth, and the sunlight that reaches that far out packs 25 times less punch," said Rick Nybakken, Juno's project manager from NASA's Jet Propulsion Laboratory in Pasadena, Calif. "While our massive solar arrays will be generating only 500 watts when we are at Jupiter, Juno is very efficiently designed, and it will be more than enough to get the job done."

Prior to Juno, eight spacecraft have navigated the cold, harsh underlit realities of deep space as far out as Jupiter. All have used nuclear power sources to get their job done. Solar power is possible on Juno due to improved solar-cell performance, energy-efficient instruments and spacecraft, a mission design that can avoid Jupiter's shadow, and a polar orbit that minimizes the total radiation. Juno's maximum distance from the sun during its 16-month science mission will be about 517 million miles (832 million kilometers), an almost five percent increase in the record for solar-powered space vehicles.

"It is cool we got the record and that our dedicated team of engineers and scientists can chalk up another first in space exploration," said Bolton. "But the best is yet to come. We are achieving these records and venturing so far out for a reason -- to better understand the biggest world in our solar system and thereby better understand wh ere we came from."

Juno will arrive at Jupiter on July 4 of this year. Over the next year the spacecraft will orbit the Jovian world 33 times, skimming to within 3,100 miles (5,000 kilometers) above the planet's cloud tops every 14 days.  During the flybys, Juno will probe beneath the obscuring cloud cover of Jupiter and study Jupiter's aurorae to learn more about the planet's origins, structure, atmosphere and magnetosphere.

[свернуть]

[che wi]

NASA's Juno Spacecraft Burns for Jupiter

NASA's solar-powered Juno spacecraft successfully executed a maneuver to adjust its flight path today, Feb. 3. The maneuver refined the spacecraft's trajectory, helping set the stage for Juno's arrival at the solar system's largest planetary inhabitant five months and a day from now.

"This is the first of two trajectory adjustments that fine tune Juno's orbit around the sun, perfecting our rendezvous with Jupiter on July 4th at 8:18 p.m. PDT [11:18 p.m. EDT]," said Scott Bolton, Juno principal investigator at the Southwest Research Institute in San Antonio.

The maneuver began at 10:38 a.m. PST (1:38 p.m. EST). ). The Juno spacecraft's thrusters consumed about 1.3 pounds (0.6 kilograms) of fuel during the burn, and changed the spacecraft's speed by 1 foot (0.31 meters), per second. At the time of the maneuver, Juno was about 51 million miles (82 million kilometers) from Jupiter and approximately 425 million miles (684 million kilometers) from Earth. The next trajectory correction maneuver is scheduled for May 31.

Спойлер

Juno was launched on Aug. 5, 2011. The spacecraft will orbit the Jovian world 33 times, skimming to within 3,100 miles (5,000 kilometers) above the planet's cloud tops every 14 days. During the flybys, Juno will probe beneath the obscuring cloud cover of Jupiter and study its aurorae to learn more about the planet's origins, structure, atmosphere and magnetosphere.

Juno's name comes from Greek and Roman mythology. The god Jupiter drew a veil of clouds around himself to hide his mischief, and his wife -- the goddess Juno -- was able to peer through the clouds and reveal Jupiter's true nature.

[свернуть]

[Pirat5]

и то же самое на русском:
http://lenta.ru/news/2016/02/04/juno/

[che wi]

Mission Status

As of Feb. 19, 2016, Juno is approximately 413 million miles (665 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 37 minutes.

Juno is traveling at a velocity of approximately 51,000 miles per hour (about 22.9 kilometers per second) relative to Earth, 16,000 miles per hour (about 7.3 kilometers per second) relative to the Sun, and 12,000 miles per hour (about 5.6 kilometers per second) relative to Jupiter. Juno has now travelled 1.71 billion miles (2.75 billion kilometers, or 18.41 AU) since launch, and has another 48 million miles to go (77 million kilometers, or 0.52 AU) before entering orbit around Jupiter.

The Juno spacecraft remains in excellent health and is operating nominally.

Juno is slated to arrive at the gas giant planet on July 4, 2016, scheduled for 8:35 p.m. PDT (Earth Received Time).

[che wi]

Mission Status

As of March 25, 2016, Juno is approximately 410 million miles (659 million kilometers) fr om Earth. The one-way radio signal travel time between Earth and Juno is currently about 37 minutes.

Juno is traveling at a velocity of approximately 53,000 miles per hour (about 23.6 kilometers per second) relative to Earth, 16,000 miles per hour (about 7.1 kilometers per second) relative to the Sun, and 13,000 miles per hour (about 5.7 kilometers per second) relative to Jupiter. Juno has now travelled 1.73 billion miles (2.78 billion kilometers, or 18.56 AU) since launch, and has another 34 million miles to go (55 million kilometers, or 0.37 AU) before entering orbit around Jupiter.

The Juno spacecraft is in excellent health and is operating nominally.

Спойлер

Juno is slated to arrive at the gas giant planet on July 4, 2016, at 8:35 p.m. PDT (Earth Received Time). Track and visualize Juno's journey through space using NASA's Eyes on the Solar System 3D interactive.

Juno's onboard color camera, called JunoCam, invites the public to serve as a virtual imaging team. Vote and comment on wh ere to point JunoCam and which features to image on Jupiter using the new JunoCam web platform on this site.

[свернуть]

[Pirat5]

Что-то никаких снимков не спешат показать. А ведь три месяца осталось...
У NewHorizons за 3 месяца до рандеву (115 million kilometers) уже были навигационные кадры.
Сколько текущее расстояние до Юпитера?
(55 million kilometers, or 0.37 AU)  - это ведь будущий путь. А прямое расстояние до Юпитера?

[uncle_jew]

Pirat5 пишет:
Что-то никаких снимков не спешат показать. А ведь три месяца осталось...
У NewHorizons за 3 месяца до рандеву (115 million kilometers) уже были навигационные кадры.

На New Horizons был хороший телескоп с камерой. На JUNO - только маленькая веб-камера без зума.

Так что Юпитер сейчас сильно меньше пикселя размером, да и изображения с орбиты вряд ли будут особо интересными. Максимум, что она даст - 15км/пиксель. Это гораздо хуже "Вояджеров".

[Dmitry]

 Да и изображения с орбиты вряд ли будут особо интересными. Максимум, что она даст - 15км/пиксель. Это гораздо хуже "Вояджеров".

Снимки должны быть весьма интересными за счет съемки с малого расстояния и широкоугольной перспективы, к тому же в кадр попадут полюса.

[che wi]

Mission Status

As of May 6, 2016, Juno is approximately 450 million miles (724 million kilometers) fr om Earth. The one-way radio signal travel time between Earth and Juno is currently about 40 minutes.

Juno is traveling at a velocity of approximately 60,000 miles per hour (about 26.9 kilometers per second) relative to Earth, 15,000 miles per hour (about 6.7 kilometers per second) relative to the Sun, and 13,000 miles per hour (about 6 kilometers per second) relative to Jupiter. Juno has now travelled 1.74 billion miles (2.8 billion kilometers, or 18.73 AU) since launch, and has another 19 million miles to go (31 million kilometers, or 0.20 AU) before entering orbit around Jupiter.

The Juno spacecraft is in excellent health and is operating nominally.

Спойлер

Juno will arrive at Jupiter on July 4, 2016, at 8:35 p.m. PDT (Earth Received Time). Track and visualize Juno's journey through space using NASA's Eyes on the Solar System 3D interactive.

Juno's onboard color camera, called JunoCam, invites the public to serve as a virtual imaging team. Vote and comment on wh ere to point JunoCam and which features to image on Jupiter using the new JunoCam web platform on this site.

[свернуть]

[Pirat5]

Зонд NASA Juno пересек гравитационную границу между Юпитером и Солнцем
 

Американский космический зонд Juno ("Юнона")  приблизился к главной цели своего путешествия - Юпитеру, перейдя через гравитационную границу между этой гигантской планетой и Солнцем, передает ТАСС. Об этом сообщило в пятницу Национальное управление США по аэронавтике и исследованию космического пространства (NASA), отправившее автоматическую станцию в полет 5 августа 2011 года.

"Сейчас на нее в равной мере действуют силы притяжения Юпитера и Солнца, - отметил руководитель этого проекта из Лаборатории реактивного движения в Пасадене (штат Калифорния) Рик Найбэккен. - Однако начиная с субботы и до самого конца этой миссии гравитационное воздействие Юпитера на Juno будет возрастать, а других астрономических тел - уменьшаться".

http://novosti-kosmonavtiki.ru/news/31308/ 

On July 4 of this year, it will perform a Jupiter orbit insertion maneuver – a 35-minute burn of its main engine, which will impart a mean change in velocity of 1,212 mph (542 meters per second) on the spacecraft. Once in orbit, the spacecraft will circle the Jovian world 37 times, skimming to within 3,100 miles (5,000 kilometers) above the planet's cloud tops. During the flybys, Juno will probe beneath the obscuring cloud cover of Jupiter and study its auroras to learn more about the planet's origins, structure, atmosphere and magnetosphere.
https://www.missionjuno.swri.edu/news/juno-crosses-jupiter-sun-gravitational-boundary