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2005.11.26

「はやぶさリンク」:今、確実に言えること、サンプラーホーンに何かが触れた

 午前9時58分、斎藤助教授が登場。早口で、現状を説明した。

「今、確実に言えることは以下の三点だけです。

 着陸時に走るソフトウエアはすべて正常に動作したことを、テレメトリにより確認しました。

 次に、姿勢が安定しており、探査機はセーフモードに入っていません。すでにハイゲインアンテナによる通信が確立しています。

 最後に、現在、ハイゲインアンテナによるダウンリンクを始めています。担当者が、届いたデータを片っ端に解析しています。

 我々としては、まだこれ以上のことは推測になってしまうと考えています。次の記者会見で、ダウンロードしたデータの解析結果が出せると思います。

 現在探査機は43cm/sの速度でイトカワから離れつつあります。午前10時現在、はやぶさはイトカワから5.2kmのところにあります。

 WCTというのは、イトカワを撮影した画像の重心を目指して降下するというモードです。ターゲットマーカーを追尾する時にはターゲットマーカー追尾モードという別のモードに入ります。
 着地からサンプル採集、離陸に至る一連のシーケンスの最後には、「WCTに戻ること」という命令が入っている。探査機がWCTになっているということは、間接的にすべてのシーケンスが正常に動作したことを意味します。」

 「自分の担当があるので」と、あわただしく斎藤助教授は出て行った。

 記者会見は本日午後1時からを予定。ただし、データ解析の進捗状況によって時間は多少前後する模様。


 直後、川口プロマネから、電話がプレスルームに入る。記者の「着陸時間は何時何分か」という質問に対する回答。「探査機時間で午前7時7分、サンプラーホーンが何かに触れた」というものだった。


Translation by Mr. RogueEngineer, thank you!

Rough English translation of this entry:

Associate professor Saito appeared at 9:58 AM and made a quick comment.

"The following three things is all we can say for sure for now:

First, we confirmed through telemetry that the all of the software used for the landing sequence worked.

Second, the attitude of Hayabusa is stable and it is not in the safe mode. The connection with high-gain antenna is already established.

Finally, we started downlink operation through high-gain antenna. The staff is analyzing all the data as soon as it arrives.

Making further comment would be based on just speculation and we are not going to say further. On next press conference we think we can show you the result of analysis of downloaded data.

Currently the probe is leaving Itokawa at the rate of 43cm/s. As of 10 AM, Hayabusa is 5.2km away from Itokawa.

WCT is a mode for the descent, aiming at the center of the picture of Itokawa. There's another mode, "target marker following" that is used for aim for the target marker.
The sequence of touchdown, sample collection, and liftoff ends with the command 'return to WCT'. Seeing the probe in WCT mode implies all the sequence is normally executed."

Saying "I've got a work to do", Associate Professor Saito left the room in hurry.

The press conference is to be held at 1:00 PM.
According to the progress of data analysis, the time may change.

Shortly after that, project manager Kawaguchi called the pressroom to answer the previous question from the reporter "what was the exact time of landing?" He said "7:07AM on probe time, sampler horn touched something."

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Rough English translation of this entry:

Associate professor Saito appeared at 9:58 AM and made a quick comment.

"The following three things is all we can say for sure for now:

First, we confirmed through telemetry that the all of the software used for the landing sequence worked.

Second, the attitude of Hayabusa is stable and it is not in the safe mode. The connection with high-gain antenna is already established.

Finally, we started downlink operation through high-gain antenna. The staff is analyzing all the data as soon as it arrives.

Making further comment would be based on just speculation and we are not going to say further. On next press conference we think we can show you the result of analysis of downloaded data.

Currently the probe is leaving Itokawa at the rate of 43cm/s. As of 10 AM, Hayabusa is 5.2km away from Itokawa.

WCT is a mode for the descent, aiming at the center of the picture of Itokawa. There's another mode, "target marker following" that is used for aim for the target marker.
The sequence of touchdown, sample collection, and liftoff ends with the command 'return to WCT'. Seeing the probe in WCT mode implies all the sequence is normally executed."

Saying "I've got a work to do", Associate Professor Saito left the room in hurry.

The press conference is to be held at 1:00 AM. According to the progress of data analysis, the time may change.

Shortly after that, project manager Kawaguchi called the pressroom to answer the previous question from the reporter "what was the exact time of landing?" He said "7:07AM on probe time, sampler horn touched something."

Posted by: RogueEngineer | 2005.11.26 at 10:47 AM

Correction:

> The press conference is to be held at 1:00 AM.

The press conference is to be held at 1:00 PM.

Sorry :)

Posted by: RogueEngineer | 2005.11.26 at 10:49 AM

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