Autor Wątek: Parker Solar Probe  (Przeczytany 53147 razy)

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Offline Limax7

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« Odpowiedź #75 dnia: Sierpień 12, 2018, 09:26 »
Super. Wystartuje za 5 min :)
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Offline Limax7

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« Odpowiedź #76 dnia: Sierpień 12, 2018, 09:32 »
Poszła!!
Adam Hurcewicz
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Offline Orionid

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« Odpowiedź #77 dnia: Sierpień 12, 2018, 09:35 »
Boczne rakiety oddzielone

T+00:03:57.6 — Port and Starboard Booster Jettison



After consuming their liquid hydrogen and liquid oxygen propellant mixture, the Delta 4-Heavy’s port and starboard Common Booster Cores shut down their RS-68A main engines and jettison from the center core, which throttles up from a partial thrust setting to a full thrust mode after booster separation.

https://spaceflightnow.com/2018/08/11/delta-4-heavy-launch-timeline-with-parker-solar-probe/
https://spaceflightnow.com/2018/08/10/delta-4-heavy-parker-solar-probe-mission-status-center/
« Ostatnia zmiana: Sierpień 12, 2018, 09:42 wysłana przez Orionid »

Offline Limax7

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« Odpowiedź #78 dnia: Sierpień 12, 2018, 09:37 »
Dwa boostery odłączone. Ok 10:11 finalne odłączenie sondy i lot ku Wenus i Słońcu
« Ostatnia zmiana: Sierpień 12, 2018, 10:11 wysłana przez Limax7 »
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Polskie Forum Astronautyczne

Odp: Parker Solar Probe
« Odpowiedź #78 dnia: Sierpień 12, 2018, 09:37 »

Offline Limax7

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« Odpowiedź #79 dnia: Sierpień 12, 2018, 09:41 »
184 km nad Ziemią..
Adam Hurcewicz
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Offline Orionid

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Odp: Parker Solar Probe
« Odpowiedź #80 dnia: Sierpień 12, 2018, 09:56 »
Drugie uruchomienie silnika głównego sondy. Jego 14-minutowe działanie wyśle sondę na trajektorię ucieczkową od pola grawitacyjnego Ziemi

T+00:22:25.4 — Second Main Engine Start



The RL10B-2 second stage engine ignites again to send Parker Solar Probe on a trajectory to escape Earth’s gravitational bond.

Offline Orionid

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« Odpowiedź #81 dnia: Sierpień 12, 2018, 09:58 »
Cytuj
T+plus 35 minutes. Once the second stage engine shuts around at roughly T+plus 38 minutes, the Star 48BV upper stage motor will separate to prepare for the final rockt burn on today's mission.

Separation of the Star 48BV motor, built by Northrop Grumman Innovation Systems, is expected around 30 seconds after shutdown of the RL10B-2 second stage engine. Twenty seconds later, once it reaches a distance of at least 50 feet from the second stage, the Star 48BV motor will ignite its pre-packed solid propellant supply for an 89-second burn.

The Star 48BV kick stage will provide Parker Solar Probe another burst of speed, setting the spacecraft on a course toward the sun.

T + 00: 37: 09.0 - Separacja drugiego stopnia
T + 00: 37: 29,0 - Uruchomienie 3-go stopnia Star 48BV na paliwo stałe
« Ostatnia zmiana: Sierpień 12, 2018, 10:09 wysłana przez Orionid »

Offline Limax7

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« Odpowiedź #82 dnia: Sierpień 12, 2018, 10:14 »
Czy podczas przelotu obok Wenus sonda wykona zdjęcia planety?
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« Odpowiedź #83 dnia: Sierpień 12, 2018, 10:18 »
T+00:43:18.0 — Parker Solar Probe Separation



NASA’s 1,424-pound (646-kilogram) Parker Solar Probe spacecraft separates from the Star 48BV kick stage, heading for a flyby of Venus in October to begin spiraling toward the sun.

Cytuj
08/12/2018 10:18 Stephen Clark

Parker Solar Probe separation! NASA's newest space mission has successfully started a daring voyage to explore the sun's corona for the first time.
« Ostatnia zmiana: Sierpień 12, 2018, 12:06 wysłana przez Orionid »

Offline Orionid

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Odp: Parker Solar Probe
« Odpowiedź #84 dnia: Sierpień 12, 2018, 10:50 »


Sonda Parker w drodze
  12.08. o 07:31 z Cape Canaveral wystrzelona została RN Delta-4H/Star-48BV, która wyniosła w T+38' 58"
na orbitę heliocentryczną sondę kosmiczną NASA Parker Solar Probe.



Udany start Parker Solar Probe
BY MICHAŁ MOROZ ON 12 SIERPNIA 2018


Parker Solar Probe / NASA

12 sierpnia rozpoczęła się misja Parker Solar Probe. Sonda została wyniesiona na pokładzie rakiety Delta IV Heavy.

Sonda Parker Solar Probe będzie prowadzić pomiary korony słonecznej. Badania będą wykonywane z rekordowo bliskiej odległości 6,2 milionów kilometrów, od fotosfery Słońca, uznawanej umownie za powierzchnie naszej Dziennej Gwiazdy. Przed ogromnymi temperaturami sondę będzie chroniła ważąca specjalna osłona termiczna skonstruowana przez inżynierów z Applied Physics Laboratory.

Początek misji rozpoczął się o 9:31 CEST z wyrzutni SLC 37B na Cape Canaveral. Do wyniesienia sondy użyta została rakieta Delta IV Heavy z górnym stopniem Star-48BV. Po 38 minutach i 58 sekundach lotu sonda została wyniesiona na orbitę heliocentryczną. Zbliżanie się do Słońca będzie trwało do 2024 roku. W tym czasie sonda wykona 7 przelotów obok Wenus i obiegnie Słońce 24 razy. Uzyskane asysty grawitacyjne pozwolą sondzie wejść na orbitę, w peryhelium której jej szybkość względem Słońca wyniesie 800 tys. km/h. Pierwszy przelot koło Wenus będzie wykonany pod koniec września 2018.

Start rakiety udał się za drugim podejściem. 11 sierpnia trwające 65 minut okno startowe zostało w pełni wykorzystane na usuwanie usterek technicznych.



Zapraszamy też do szczegółowej analizy misji autorstwa Aleksandra Fiuka.
https://kosmonauta.net/2018/08/udany-start-parker-solar-probe/

USA/ Próbnik Parker Solar Probe wystartował
13.08.2018


NASA Parker Solar Probe w Astrotech Space Operations w Titusville, Floryda. 11.07.2018 r. EPA/NASA/Johns Hopkins APL/Ed Whitman

Z kosmodromu na przylądku Canaveral na Florydzie w niedzielę wystartowała rakieta nośna Delta IV Heavy z próbnikiem Parker Solar Probe, który ma się zbliżyć do Słońca bardziej niż jakikolwiek inny obiekt wysłany dotąd przez człowieka.

Jak informuje realizująca tę misję amerykańska Państwowa Agencja Aeronautyki i Przestrzeni Kosmicznej (NASA), 700-kilogramowy próbnik ma okrążać Słońce po zmiennych eliptycznych orbitach, odległych miejscami od naszej dziennej gwiazdy tylko o 6,2 mln kilometrów. Zostanie w ten sposób wystawiony na temperatury nawet powyżej 1370 stopni Celsjusza, a w momentach największych zbliżeń do powierzchni Słońca jego prędkość będzie wzrastać do około 200 kilometrów na sekundę.

Dla porównania, średnia odległość Ziemi od Słońca wynosi 150 mln kilometrów, a jej średnia prędkość obiegu niecałe 30 kilometrów na sekundę.

Według NASA, krążąc w atmosferze Słońca próbnik będzie śledził, ile przepływa przez nią energii i ciepła oraz zbada, jakie są czynniki przyspieszania wiatru słonecznego i strumieni cząstek o wysokiej energii. Pozwoli to rozszerzyć wiedzę o zjawiskach oddziaływujących na fizyczne parametry środowiska wokółziemskiego oraz o ewolucji gwiazd. Przesyłanie danych powinno się zakończyć nie wcześniej niż w 2025 roku.

Ewenementem w historii NASA jest nadanie słonecznej sondzie imienia osoby żyjącej - 91-letniego amerykańskiego astrofizyka Eugene`a Parkera. Parker był wśród kilku tysięcy osób obserwujących niedzielny start. (PAP)
http://naukawpolsce.pap.pl/aktualnosci/news%2C30598%2Cusa-probnik-parker-solar-probe-wystartowal.html

NASA, ULA Launch Parker Solar Probe on Historic Journey to Touch Sun
Aug. 12, 2018 RELEASE 18-072

Hours before the rise of the very star it will study, NASA’s Parker Solar Probe launched from Florida Sunday to begin its journey to the Sun, where it will undertake a landmark mission. The spacecraft will transmit its first science observations in December, beginning a revolution in our understanding of the star that makes life on Earth possible.

Roughly the size of a small car, the spacecraft lifted off at 3:31 a.m. EDT on a United Launch Alliance Delta IV Heavy rocket from Space Launch Complex-37 at Cape Canaveral Air Force Station. At 5:33 a.m., the mission operations manager reported that the spacecraft was healthy and operating normally.

The mission’s findings will help researchers improve their forecasts of space weather events, which have the potential to damage satellites and harm astronauts on orbit, disrupt radio communications and, at their most severe, overwhelm power grids.

“This mission truly marks humanity’s first visit to a star that will have implications not just here on Earth, but how we better understand our universe,” said Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate. “We’ve accomplished something that decades ago, lived solely in the realm of science fiction.”

During the first week of its journey, the spacecraft will deploy its high-gain antenna and magnetometer boom. It also will perform the first of a two-part deployment of its electric field antennas. Instrument testing will begin in early September and last approximately four weeks, after which Parker Solar Probe can begin science operations.

“Today’s launch was the culmination of six decades of scientific study and millions of hours of effort,” said project manager Andy Driesman, of the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Maryland. “Now, Parker Solar Probe is operating normally and on its way to begin a seven-year mission of extreme science.”

Over the next two months, Parker Solar Probe will fly towards Venus, performing its first Venus gravity assist in early October – a maneuver a bit like a handbrake turn – that whips the spacecraft around the planet, using Venus’s gravity to trim the spacecraft’s orbit tighter around the Sun. This first flyby will place Parker Solar Probe in position in early November to fly as close as 15 million miles from the Sun – within the blazing solar atmosphere, known as the corona – closer than anything made by humanity has ever gone before.

Throughout its seven-year mission, Parker Solar Probe will make six more Venus flybys and 24 total passes by the Sun, journeying steadily closer to the Sun until it makes its closest approach at 3.8 million miles. At this point, the probe will be moving at roughly 430,000 miles per hour, setting the record for the fastest-moving object made by humanity.

Parker Solar Probe will set its sights on the corona to solve long-standing, foundational mysteries of our Sun. What is the secret of the scorching corona, which is more than 300 times hotter than the Sun’s surface, thousands of miles below? What drives the supersonic solar wind – the constant stream of solar material that blows through the entire solar system? And finally, what accelerates solar energetic particles, which can reach speeds up to more than half the speed of light as they rocket away from the Sun?

Scientists have sought these answers for more than 60 years, but the investigation requires sending a probe right through the unrelenting heat of the corona. Today, this is finally possible with cutting-edge thermal engineering advances that can protect the mission on its daring journey.

“Exploring the Sun’s corona with a spacecraft has been one of the hardest challenges for space exploration,” said Nicola Fox, project scientist at APL. “We’re finally going to be able to answer questions about the corona and solar wind raised by Gene Parker in 1958 – using a spacecraft that bears his name – and I can’t wait to find out what discoveries we make. The science will be remarkable.”

Parker Solar Probe carries four instrument suites designed to study magnetic fields, plasma and energetic particles, and capture images of the solar wind. The University of California, Berkeley, U.S. Naval Research Laboratory in Washington, University of Michigan in Ann Arbor, and Princeton University in New Jersey lead these investigations.

Parker Solar Probe is part of NASA’s Living with a Star program to explore aspects of the Sun-Earth system that directly affect life and society. The Living with a Star program is managed by the agency’s Goddard Space Flight Center in Greenbelt, Maryland, for NASA’s Science Mission Directorate in Washington. APL designed and built, and operates the spacecraft.

The mission is named for Eugene Parker, the physicist who first theorized the existence of the solar wind in 1958. It’s the first NASA mission to be named for a living researcher.

A plaque dedicating the mission to Parker was attached to the spacecraft in May. It includes a quote from the renowned physicist – “Let’s see what lies ahead.” It also holds a memory card containing more than 1.1 million names submitted by the public to travel with the spacecraft to the Sun.

For more information on Parker Solar Probe, go to:
https://www.nasa.gov/solarprobe
https://www.nasa.gov/press-release/nasa-ula-launch-parker-solar-probe-on-historic-journey-to-touch-sun


http://www.planetary.org/blogs/jason-davis/parker-solar-probe-preview.html





Delta IV-Heavy launches Parker Solar Probe on mission to touch the Sun
written by Chris Gebhardt August 10, 2018


https://www.nasaspaceflight.com/2018/08/parker-solar-probe-unlock-mysteries-suns-corona/

NASA launches Parker Solar Probe on historic mission
August 12, 2018 William Harwood


Eugene Parker, namesake for NASA’s Parker Solar Probe, watches the spacecraft’s launch early Sunday. Credit: NASA/Glenn Benson

(...) The central core booster continued firing for another minute and a half before it, too, shut down and fell away from the fast-moving second stage. A few seconds after that, the upper stage’s single hydrogen-fueled Aerojet Rocketdyne RL10B-2 engine ignited to continue the climb to space.

Finally, after two firings of the second-stage engine, the Parker Solar Probe and its Northrup Grumman solid-fuel upper stage were released from the Delta 4. The upper stage then ignited for a short burn, supplying more than half of the probe’s final velocity. (...)


An illustration of Parker Solar Probe’s trajectory through the inner solar system following launch. Credit: NASA/JHUAPL
https://spaceflightnow.com/2018/08/12/nasa-launches-parker-solar-probe-on-historic-mission/

08/12/2018 10:33 Stephen Clark

Andrew Driesman, Parker Solar Probe project manager at the Johns Hopkins University Applied Physics Laboratory, provided an overview of the spacecraft's post-launch activations and deployments in a recent interview with Spaceflight Now.

"When we separate from the launch vehicle, there are some indications to the spacecraft that we’ve separated," he said. "That allows us to activate our inhibited buses, which include propulsion and the transmitter. We’ll be transmitting a few minutes after separation."

One of the first tasks for Parker Solar Probe will be deployment of the craft's power-generating solar arrays.

"The post-separation sequence includes release of the solar arrays. The solar arrays are driven out. There are bolts that restrain them and those bolts are severed, so the solar arrays can move freely. The spacecraft will go to an attitude where it points one of the sets of cooling system radiators at the sun, and they warm up, and then the cooling system water is released into half of the cooling system. Then the spacecraft has gone into a nominal sun-pointing attitude. We’ll be in telemetry contact for that whole event."

“The other deployables are the high-gain antenna. It’s released from its launch locks. There’s a magnetic boom that’s released. That carries the spacecraft’s magnetometers. Later in the mission, once we get close enough to the sun and we’re able to get warm enough, the second half of the cooling system is activated. Other deployables include a WISPR door — the white light imager has a door that protects it during launch. Inside the electrostatic analyzers, there are small doors in those that are released as well.”

Parker Solar Probe is heading for an early October encounter with Venus, when it will use the planet's gravity to slingshot closer to sun, aiming for a passage around 15 million miles (24 million kilometers) from our star in early November.

The probe's seven-year mission will include 24 ever-tightening orbits around the sun, eventually placing the orbiter as close as 3.83 million miles (6.16 million kilometers) from the sun in 2024.
https://spaceflightnow.com/2018/08/10/delta-4-heavy-parker-solar-probe-mission-status-center/

NASA launches Parker Solar Probe on mission to 'touch the Sun'

August 12, 2018 — NASA's first mission to "touch the Sun" produced an artificial sunrise as it left Earth.

The space agency's Parker Solar Probe, which will fly into the Sun's atmosphere, or corona — traveling closer to the Sun than any spacecraft in history — began its unprecedented journey in darkness on Sunday morning (Aug. 12) atop a United Launch Alliance (ULA) Delta IV Heavy rocket. (...)

On its first pass, the Parker Solar Probe will reach closer to the Sun than any craft before.

The current record holder, the German-NASA Helios B, flew to 27 million miles (43.4 million kilometers) of the Sun on April 17, 1976. The Parker Solar Probe will come within 15.4 million miles (24.8 million kilometers) when it first encounters the Sun in early November 2018.

And from there, it will get closer. Much closer.

During its 24th and final-planned perihelion in June 2025, the Parker Solar Probe will pass just 3.8 million miles (6.2 million kilometers) above the Sun's surface.

On that orbit, as the spacecraft hurtles around the Sun, it will set another record for the fastest speed achieved by a human-made object. The Parker Solar Probe will travel at 430,000 miles per hour (692,000 kilometers per hour) relative to the Sun.

Helios B, by comparison, lumbered 221,232 mph (356,040 km/h) at its fastest, relative to Earth. (...)

Namesake

The Parker Solar Probe is named for Dr. Eugene Parker, the University of Chicago physicist who first predicted the solar wind's existence in a paper published at the dawn of the Space Age.

Parker, now 91, is the first living person to have a NASA spacecraft named after him.

"I was sitting in my office one day doing nothing, probably not useful, but it was work anyway, and the phone rang," Parker recalled on Thursday (Aug. 9) while at Kennedy Space Center in Florida for the launch.

Thomas Zurbuchen, NASA's associate administrator for science and a solar physicist, was on the line. He told Parker that the agency was thinking of naming the spacecraft after him and desired his permission.

"I was sort of stunned. I didn't know what to say," said Parker. "So I said, 'Yes.'"

Parker's 1958 paper, "Dynamics of the Interplanetary Gas and Magnetic Fields." was initially rejected for publication because the idea of a supersonic solar wind seemed too far-fetched. But his calculations that there was high speed matter and magnetism constantly escaping the Sun has since been proven through direct observation.

NASA's robotic missions are most often renamed after they are launched, once the probe is shown to be in working order. In this case, given Parker's work within the field and how closely aligned it was with the mission, NASA decided to honor him prior to launch, in order to draw attention to his contributions to heliophysics and space science.
http://www.collectspace.com/news/news-081218a-parker-solar-probe-launch.html

NASA spacecraft rockets toward sun for closest look yet
August 12, 2018 by Marcia Dunn


In this Thursday, Aug. 9, 2018 photo, astrophysicist Eugene Parker sits between Johns Hopkins University project scientist Nicola Fox, left, and NASA's science mission chief Thomas Zurbuchen, during a news conference about the Parker Solar Probe at the Kennedy Space Center in Florida. It's the first time NASA has named a spacecraft after someone who's still alive. (AP Photo/Marcia Dunn)

(...) For the second straight day, thousands of spectators jammed the launch site in the middle of the night as well as surrounding towns, including Parker and his family. He proposed the existence of solar wind—a steady, supersonic stream of particles blasting off the sun—60 years ago. (...)

Parker, the probe, will start shattering records this fall. On its very first brush with the sun, it will come within 15.5 million miles (25 million kilometers), easily beating the current record of 27 million miles (43 million kilometers) set by NASA's Helios 2 spacecraft in 1976. Zurbuchen expects the data from even this early stage to yield top science papers.
(...)


In this Thursday, Aug. 9, 2018, astrophysicist Eugene Parker attends a news conference about the Parker Solar Probe named after him, at the Kennedy Space Center in Florida. Sixty years ago, the young astrophysicist proposed the existence of solar wind. Many were skeptical and told him to read up on it first "so you don't make these killer mistakes," he recalls. (Kim Shiflett/NASA via AP)
https://phys.org/news/2018-08-nasa-spacecraft-rockets-sun-closest.html#jCp

Parker Solar Probe (PSP, Solar Probe Plus, SPP
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Offline kanarkusmaximus

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Odp: Parker Solar Probe
« Odpowiedź #85 dnia: Sierpień 12, 2018, 11:52 »
Ech niestety padł mi internet i nie widziałem startu na żywo. A płomieni przy starcie było sporo!

Offline Orionid

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Odp: Parker Solar Probe
« Odpowiedź #86 dnia: Sierpień 12, 2018, 11:58 »

Offline Snoopy

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Odp: Parker Solar Probe
« Odpowiedź #87 dnia: Sierpień 12, 2018, 12:39 »
Szkoda że nie umieszczono kamer w samej rakiecie.
Fajny  byłby widok na separację rakiet i oddzielenie sondy.
Oferują same rendery.
Space X jakoś sobie z tym radzi i jest to bardziej spektakularne.

Offline Orionid

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Odp: Parker Solar Probe
« Odpowiedź #88 dnia: Sierpień 12, 2018, 12:52 »
Czy podczas przelotu obok Wenus sonda wykona zdjęcia planety?

Despite the fact that Parker will by Venus seven times during the mission, I’m told there are no plans to image the planet. Parker’s main imaging instrument, WISPR, is optimized to image the corona, inner heliosphere, and solar wind.

http://www.planetary.org/blogs/jason-davis/parker-solar-probe-preview.html

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« Odpowiedź #89 dnia: Sierpień 12, 2018, 13:35 »
Mission duration: 6 yrs, 11 months

+ EXPAND ALL
2015
March: Critical Design Review (CDR)

2016
May: System Integration Review
July: KDP-D
July: Start of Integration and Testing

2017
Begin March 2017: Instrument Deliveries
Begin August 2017: Observatory System Testing
Fall 2017: Shipment of Observatory to GSFC

2018
Spring 2018: Shipment of Observatory to Cape Canaveral
August 12, 2018: Launch - 3:31 a.m. EDT (7:31 UTC)

September 28, 2018: Venus Flyby #1
November 1, 2018: Perihelion #1

2019
March 31, 2019: Perihelion #2
August 28, 2019: Perihelion #3
December 22, 2019: Venus Flyby #2

2020
January 24, 2020: Perihelion #4
June 2, 2020: Perihelion #5
July 6, 2020: Venus Flyby #3
September 22, 2020: Perihelion #6

2021
January 13, 2021: Perihelion #7
February 16, 2021: Venus Flyby #4
April 24, 2021: Perihelion #8
August 5, 2021: Perihelion #9
October 11, 2021: Venus Flyby #5
November 16, 2021: Perihelion #10

2022
February 21, 2022: Perihelion #11
May 28, 2022: Perihelion #12
September 1, 2022: Perihelion #13
December 6, 2022: Perihelion #14

2023
March 13, 2023: Perihelion #15
June 17, 2023: Perihelion #16
August 16, 2023: Venus Flyby #6
September 23, 2023: Perihelion #17
December 24, 2023: Perihelion #18

2024
March 25, 2024: Perihelion #19
June 25, 2024: Perihelion #20
September 25, 2024: Perihelion #21
November 2, 2024: Venus Flyby #7
December 19, 2024: Perihelion #22 First Close Approach

2025
March 18, 2025: Perihelion #23
June 14, 2025: Perihelion #24

http://parkersolarprobe.jhuapl.edu/The-Mission/index.php#Timeline

Polskie Forum Astronautyczne

Odp: Parker Solar Probe
« Odpowiedź #89 dnia: Sierpień 12, 2018, 13:35 »