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Akatsuki's new orbit, first images, and science plans

Emily Lakdawalla • December 09, 2015 • 9

JAXA had a press briefing today to confirm the successful arrival of Akatsuki into Venus orbit. It's been a long time coming: today's announcement came twelve years to the day after Japan had to abandon efforts to put Nozomi into Mars orbit. They released lovely images and discussed future plans.

Live from Sagamihara: Akatsuki in Orbit, Day 1

Sanjay Limaye • December 08, 2015

One day after closest approach, Akatsuki is now speeding away from Venus at 4.09 kilometers per second and is 180,000 kilometers from the planet. In his last report from Sagamihara, Sanjay Limaye gets some updates on the new orbiter's trajectory.

Live from Sagamihara: Akatsuki Orbit Insertion Success!

Sanjay Limaye • December 07, 2015 • 7

The Akatsuki team achieved something that no mission as done before – put a spacecraft into orbit around a planet using only the attitude control thrusters. An event that one could not even conceive or propose!

Live from Sagamihara: Akatsuki Orbit Insertion - Second Try

Sanjay Limaye • December 06, 2015 • 1

Venus researcher Sanjay Limaye reports from the Institute of Space and Astronautical Science (ISAS) in Sagamihara on the status of Akatsuki's second Venus orbit insertion attempt.

Timeline for Akatsuki's second attempt at orbit insertion

Emily Lakdawalla • December 04, 2015 • 5

This is it: Akatsuki's final chance at Venus orbit insertion. The rocket firing should begin on December 7 at 08:51 Japan time (December 6 23:51 UT / 15:51 PST) and last for 20 minutes. It will take two days for JAXA to determine whether the orbit has been changed enough for Akatsuki to stay at Venus.

Back from the Brink: Akatsuki Returns to Venus

Ralph Lorenz • December 04, 2015 • 2

Perhaps forgotten by the general public in the West, a long-lost spacecraft is set to enter orbit around our sister planet in December, picking up where ESA’s Venus Express left off when its operations ended last year.

Two JAXA mission updates: Akatsuki Venus orbit entry and PROCYON Earth flyby coming up!

Emily Lakdawalla • November 19, 2015

Akatsuki is finally approaching its second attempt to enter Venus orbit, on December 7; let's all wish JAXA the best of luck! And PROCYON, whose ion engines have failed, is still an otherwise perfectly functional spacecraft that is taking photos of Earth and the Moon as it approaches for a flyby.

What's up in solar system exploration: August 2015 edition

Emily Lakdawalla • August 10, 2015 • 5

I'm back from two weeks' vacation, so it's time to catch up on the status of all our intrepid planetary missions, from Akatsuki to the Voyagers and hitting the Moon, Mars, asteroids, comets, and Saturn in between.

Two more brief mission updates: Philae makes contact; Akatsuki to perform course correction

Emily Lakdawalla • July 10, 2015 • 6

As a followup to yesterday's post about Dawn, Juno, and OSIRIS-REx, I have updates on two more missions. With this post, I hope to have cleared the decks so that I can focus on Pluto for the next week!

A new mission for Akatsuki, and status updates for Hayabusa2 and Chang'e

Emily Lakdawalla • February 09, 2015 • 2

Brief updates on four ongoing missions: JAXA's Akatsuki and Hayabusa2, and China's Chang'e 3 and Chang'e 5 test vehicle. JAXA has articulated the new science plan for Akatsuki. Hayabusa2's ion engines have checked out successfully. The Yutu rover is still alive on the Moon, and Chang'e 5 test vehicle has successfully tested crucial rendezvous operations in lunar orbit.

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