[TD1 - L08E1] Today (2/21) 12: 36 (JST), the decision to begin the touchdown operation was declared as "GO". While the descent start time is delayed about 5 hours, the speed to 5km altitude will be increased slightly so there is no change to the scheduled time for touchdown.
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[TD1-L08E1] On February 22 at 2:09 JST we received this navigation image! The Urashima crater is gradually turning to become visible. In the second image, we increased the magnification and brightness for easier viewing.pic.twitter.com/jN7KZ8DQMh
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[TD1-L08E1] February 22 around 4:53 JST, altitude has passed 1000m! We have a briefing from 5am.
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[TD1-L08E1] February 22 at 5:50 JST. Altitude is now about 630 m.
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[TD1-L08E1] This is the navigation image received on 2/22 at around 5:30 JST. You can begin to see the shadow of the spacecraft.pic.twitter.com/P480UlwPqs
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[TD1-L08E1] 2/22 at 6:20 JST. Altitude is about 450 m.
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[TD1-L08E1] 2/22 at 6:14 JST: Gate 3 (for switch to autonomous descent) was judged “GO”! From now on, Hayabusa2 will continue to descend autonomously.
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[TD1-L08E1] 2/22 at 6:47 JST: the altitude has passed 300 m.
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[TD1-L08E1] 2/22 at 6:55 JST. The altitude is now only 250 m.
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[TD1-L08E1] 2/22 at 7:02 JST. Altitude is now about 200 m.
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[TD1-L08E1] 2/22 at 7:22. The altitude is now about 70 m.
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[TD1-L08E1] 2/22 at 7:26 JST: The altitude has now passed 50m.
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[TD1-L08E1] 2/22 at 7:32 JST. Everyone is now closely watching the Doppler information.
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[TD1-L08E1] 2/22 at 7:36 JST. Now, telemetry is no longer available and everyone is watching the Doppler data. There are many people in the control room!
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[TD1-L08E1] 2/22 at 7:49 JST. The Doppler data showed the behaviour as expected and cheers went up with a clap!
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[TD1-L08E1] 2/22 at 7:48 JST. We have confirmed the spacecraft began to rise as planned. This was announced by the Project Manager and everyone clapped again.
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[TD1-L08E1] 2/22 at 8:07 JST. We have confirmed telemetry communication with the spacecraft has been restored as planned (lock-on). Gate 5 verification has begun for the spacecraft status check.
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[TD1-L08E1] 2/22 at 8:42 JST. The following has been confirmed at Gate 5: ・Projectile was command to fire. ・Normal sequence. ・Spacecraft state is normal. Based on this, we determined touchdown was successful! A detailed analysis will now be done.
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[TD1-L08E1] A group photograph was taken in the control room. Now, everyone is back to work again.
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[TD1-L08E1] On February 22 at 10:30 JST, Gate 6 was judged as “Go” for the spacecraft to return to the home position. The spacecraft condition is normal.
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[TD1-L08E1] On February 23 at 12:00 JST, Hayabusa2 returned to the home position (at about 20km altitude). Thank you all for rooting for
#haya2_TD! Our mission continues!Näytä tämä ketju
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