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Phoenix EDL architecture and performance
rlorenz
post May 26 2008, 08:24 PM
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Following from earlier thread's discussions on the late parachute deployment, there is a
pretty up-to-date and comprehensive discussion of Phoenix's EDL architecture from last
year's planetary probe workshop (this year's is in Atlanta next month - www.planetaryprobe.org)

http://ntrs.nasa.gov/archive/nasa/casi.ntr..._2008012907.pdf

Interestingly, they were going to use rather more sophisticated lifting entry, but it
got descoped.
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nprev
post May 27 2008, 03:33 AM
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I hope it was. Phoenix actually had two IMUs, and generally the difference between an IMU (inertial measurement unit) and an INU (inertial navigation unit) is that the latter has some brains, but the former does not. Phoenix's IMUs were expected and allowed to expire from cold last night.


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Posts in this topic
- rlorenz   Phoenix EDL architecture and performance   May 26 2008, 08:24 PM
- - Jon S. Berndt   unnecessary quoting deleted [oops. sorry. JB] QUOT...   May 27 2008, 02:50 AM
- - dvandorn   I would imagine that vehicle attitude information ...   May 27 2008, 03:23 AM
- - nprev   I hope it was. Phoenix actually had two IMUs, and ...   May 27 2008, 03:33 AM
|- - Skyrunner   QUOTE (nprev @ May 27 2008, 05:33 AM) Pho...   May 27 2008, 08:12 AM
||- - nprev   QUOTE (Skyrunner @ May 27 2008, 12:12 AM)...   May 27 2008, 10:07 AM
|- - surreyguy   QUOTE (nprev @ May 27 2008, 04:33 AM) all...   May 27 2008, 01:44 PM
- - nprev   Indeed! Seriously, though, with respect to ...   May 28 2008, 01:16 AM
- - kenny   I suspect this Q has probably been answered somewh...   May 28 2008, 05:57 PM
|- - bcory   QUOTE (kenny @ May 28 2008, 01:57 PM) I s...   May 28 2008, 06:01 PM
- - djellison   http://www.msss.com/msl/mardi/news/12Nov07/index.h...   May 28 2008, 06:00 PM
- - kenny   Thank you, both....   May 28 2008, 08:19 PM

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