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ISS loses attitude control after Nauka module docking

145 点作者 NewLogic将近 4 年前

9 条评论

geocrasher将近 4 年前
People might wonder why attitude control is important. First and foremost: power. Solar power requires that the solar arrays be directed toward the sun. Losing attitude control means that they&#x27;ll lose efficiency and thus power. This isn&#x27;t a big deal in the short run, but long term is a big deal. Surely they&#x27;ll have this fixed before that comes into play.<p>Aside from that, there&#x27;s a lot of other smaller factors such as being able to orient the station to boost orbit every so often. Even though they&#x27;re in Low Earth Orbit, there is a <i>just</i> enough atmosphere to cause the orbit to decay slightly over time, and this has to be compensated for by boosting the orbit. No attitude control = no orienting thrusters.<p>Obligatory Scott Manley video that&#x27;s way better than what I just said: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=fDp8jbP_22c" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=fDp8jbP_22c</a>
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katerberg将近 4 年前
Seems like they&#x27;re out of the immediate problem area: <a href="https:&#x2F;&#x2F;twitter.com&#x2F;SciGuySpace&#x2F;status&#x2F;1420798716554928132" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;SciGuySpace&#x2F;status&#x2F;1420798716554928132</a><p>Still lots of investigation to do and probably a permanent fix incoming, but no big risk of them falling out of the sky right now.
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NewLogic将近 4 年前
Being reported as a flight computer state machine fault. <a href="https:&#x2F;&#x2F;twitter.com&#x2F;NASASpaceflight&#x2F;status&#x2F;1420804282685792261" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;NASASpaceflight&#x2F;status&#x2F;14208042826857922...</a>
LeoPanthera将近 4 年前
Aside: Today I learned about the existence of &quot;video.ibm.com&quot; which seems to be where NASA now streams its live video. I&#x27;d never heard of it before.<p>Live ISS stream: <a href="https:&#x2F;&#x2F;video.ibm.com&#x2F;channel&#x2F;live-iss-stream" rel="nofollow">https:&#x2F;&#x2F;video.ibm.com&#x2F;channel&#x2F;live-iss-stream</a> (Currently no video, intermittent audio.)
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nraynaud将近 4 年前
for people curious, when that website is not broken <a href="https:&#x2F;&#x2F;www.internationaldockingstandard.com&#x2F;download&#x2F;IDSS_IDD_Revision_E_TAGGED.pdf" rel="nofollow">https:&#x2F;&#x2F;www.internationaldockingstandard.com&#x2F;download&#x2F;IDSS_I...</a> , there is the list of the moment of inertia of the ISS around various axes and the force and torque limits a docking ship as to respect.
kiryin将近 4 年前
attitude control, yeah, we&#x27;ve all had one of those days.
jarym将近 4 年前
attitude control huh?
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egberts将近 4 年前
Attitude?! Why I never …<p>It’s all about the orientation, #headduck
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jfengel将近 4 年前
Well, fix the fucking thing!<p>(I have been waiting <i>decades</i> to make that joke.)
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