New Horizons - misja rozszerzona

[Limax7]

Ale zdjęcia z przelotu chyba dotrą najwcześniej około 2 stycznia? Pytam w imieniu wszystkich planujących imprezę sylwestrową!

Te z najwyższą rozdzielczością, tak

Zaraz, a co wcześniej dotrze? Myślałem, że tylko "ping", czyli jest wszystko ok...

Przepraszam nie odpiwiedziałem. Wcześniej będą zdjęcia z dalszej odległości.
Mając na myśli większą rozdzielczość chodziło mi o zdjęcia z najbliżej odległości.

Szkoda że zdjęcia będą lekko poruszone ale cóż tego nie przeskoczymy. Może spece od wyostrzania poruszonych zdjęć sobie z tym poradzą 

[Limax7]

Sonnda ma przelecieć "nad" Ultima Thule widziałem grafikę z którejś konferencji. Poszukaj na Twitterze Alana Sterna

Kanarkusie znalazłem, na twicie Alana
https://mobile.twitter.com/AlanStern/status/1068458784866140160

[kanarkusmaximus]

Dzięki Limaxie! Ciekawe, czy ostatnia zmiana trajektorii wprowadzi zasadnicze różnice do tego co przedstawiłeś.

[kanarkusmaximus]

Bardzo fajne podsumowanie czego można się spodziewać:
http://www.planetary.org/blogs/emily-lakdawalla/2018/what-to-expect-new-horizons-mu69-ultima-thule.html

[Orionid]

Nieco ponad 227 godzin pozostało do przelotu.

LORRI nie wykrył zagrożeń dla przelotu w pobliżu Ultima Thule wpostaci pierścieni czy księżyców.
Trajektoria przelotu może być bliższa obiektu.

NASA's New Horizons Spacecraft Takes the Inside Course to Ultima Thule
December 18, 2018

(...) After almost three weeks of sensitive searches for rings, small moons and other potential hazards around the object, New Horizons Principal Investigator Alan Stern gave the "all clear" for the spacecraft to remain on a path that takes it about 2,200 miles (3,500 kilometers) from Ultima, instead of a hazard-avoiding detour that would have pushed it three times farther out. With New Horizons blazing though space at some 31,500 miles (50,700 kilometers) per hour, a particle as small as a grain of rice could be lethal to the piano-sized probe.

The dozen-member New Horizons hazard watch team had been using the spacecraft's most powerful telescopic camera, the Long Range Reconnaissance Imager (LORRI), to look for potential hazards. The decision on whether to keep New Horizons on its original course or divert to a more distant flyby, which would have produced less-detailed data, had to be made this week since the last opportunity to maneuver the spacecraft onto another trajectory was today (Dec. 18). (...)

http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20181218

[Orionid]

Trajektoria przelotu niemożliwa jest już do zmiany.

The PI’s Perspective: On Final Approach to Ultima
Bill Keeter Posted on December 20, 2018


This beautiful Ultima Thule flyby poster was created by artist-astronomer
Tyler Nordgen.

(...) On Saturday, Dec. 15, the New Horizons hazard watch team concluded its work, having found no moons or rings in the path of New Horizons on its planned closest approach to Ultima. With that information and a unanimous finding by our mission stakeholders team, I informed NASA that we are “go” to fly by Ultima on the trajectory that yields the best science. As a result, New Horizons will approach to within 3,500 kilometers (about 2,200 miles) of Ultima early on New Year’s Day. There is no longer any chance we will divert to a farther flyby distance with consequently lower-resolution images. (...)

https://blogs.nasa.gov/pluto/2018/12/20/the-pis-perspective-on-final-approach-to-ultima/

[Orionid]

Zagadka związana z wyznaczeniem krzywej jasności (light curve) Ultima Thule powinna być szybko rozwiązana.

Ultima Thule's First Mystery
December 20, 2018
New Horizons scientists puzzled by lack of a 'light curve' from their Kuiper Belt flyby target

NASA's New Horizons spacecraft is bearing down on Ultima Thule, its New Year's flyby target in the far away Kuiper Belt. Among its approach observations over the past three months, the spacecraft has been taking hundreds of images to measure Ultima's brightness and how it varies as the object rotates.

Those measurements have produced the mission's first mystery about Ultima. Even though scientists determined in 2017 that the Kuiper Belt object isn't shaped like a sphere – that it is probably elongated or maybe even two objects – they haven't seen the repeated pulsations in brightness that they'd expect from a rotating object of that shape. The periodic variation in brightness during every rotation produces what scientists refer to as a light curve.

"It's really a puzzle," said New Horizons Principal Investigator Alan Stern, of the Southwest Research Institute. "I call this Ultima's first puzzle – why does it have such a tiny light curve that we can't even detect it? I expect the detailed flyby images coming soon to give us many more mysteries, but I did not expect this, and so soon." (...)

http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20181220

[Orionid]

Sonda New Horizons coraz bliżej 2014 MU69
BY KRZYSZTOF KANAWKA ON 23 GRUDNIA 2018




Zapis przesłonięcia gwiazdy przez 2014 MU69 – podwójne “zniknięcie” gwiazdy może sugerować obecność małego księżyca / Credits – NASA Video

https://kosmonauta.net/2018/12/sonda-new-horizons-coraz-blizej-2014-mu69/

[Orionid]

Na Ziemi został odebrany sygnał z NH o uruchomieniu programu przelotowego i badawczego 

AlanStern@AlanStern 13 godzin temu
BREAKING…Signal has just been received at mission control, New Horizons has successfully started its flyby program of stored commands and the exploration of Ultima Thule 4 billion miles away! THIS IS IT FOLKS, FLYBY HAS BEGUN! Go New Horizons!!
#NASA #Science #SPACE#ULTIMAFLYBY
https://twitter.com/AlanStern/status/1077638375602032641

[Orionid]

Alan Stern@AlanStern 36 minut temu

PINCH ME! We’re less than 6 days from the flyby of #UltimaThule ! Just half an hour ago it should have entered Encounter Mode, a state preventing anomalies from diverting off the flyby plan. Confirmation of that critical event comes this afternoon—from 4 billion miles away. 1/2
https://twitter.com/AlanStern/status/1077892646658547713

[kanarkusmaximus]

Ciekawe czasy przed nami!

[Limax7]

Planetary Radio • December 26, 2018
Countdown to Ultima: Alan Stern and New Horizons

http://www.planetary.org/multimedia/planetary-radio/show/2018/1226-2018-alan-stern-new-horizons.html

Jeszcze nie słuchałem, może jutro wieczorem znajdę chwilkę

[Orionid]

Sekwencja zdjęć ze zbliżania do celu została zaktualizowana do 24 grudnia. Nadal niewiele widać

Alan Stern @AlanStern 1 godzinę temu
TALLY HO ULTIMA THULE!! An ancient relic of solar system formation, 4+ billion miles away, as dark as dirt, & shining only in the faint sunlight of the Kuiper Belt. Here it is, in a New Horizons imaging sequence. SEE IT MOVE, AGAINST THE STARS? TALLY HO! We'll be there on Monday!

https://mobile.twitter.com/AlanStern/status/1077934321359564802

http://pluto.jhuapl.edu/Mission/Where-is-New-Horizons.php

[kanarkusmaximus]

Ponieważ nie zanosi się by government shutdown zakończył się przed 31 grudnia - jest alternatywa dla NASA TV w związku z tym przelotem.

Alternate Viewing

Should the federal government shutdown continue through New Horizons' Ultima Thule flyby – and NASA TV, nasa.gov and other agency digital and social channels remain offline – the New Horizons mission will provide coverage of live mission activities on this website and the Johns Hopkins Applied Physics Laboratory YouTube channel.

Adres to https://www.youtube.com/user/jhuapl

Więcej na: http://pluto.jhuapl.edu/News-Center/Where-to-Watch.php

[ah]

Proponuję jednak:



a czekając poczytać: https://arxiv.org/ftp/arxiv/papers/1812/1812.04752.pdf