MAVEN development to orbit insertion |
MAVEN development to orbit insertion |
Jul 30 2012, 02:31 PM
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#1
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Junior Member Group: Members Posts: 60 Joined: 22-October 04 Member No.: 102 |
Not sure if this has been touched on before, I did not see a place for the MAVEN mission on the Past or Future missions subsection.
1)Will MAVEN have the ability to relay communication from the surface vehicles to Earth? 2)Am I correct in reading there are no visual cameras on MAVEN? Fair Use. http://lasp.colorado.edu/home/maven/scienc...rument-package/ The Particles and Fields Package, built by the University of California, Berkeley/Space Sciences Laboratory (SSL) with support from the University of Colorado Boulder/Laboratory for Atmospheric and Space Physics (LASP) and Goddard Space Flight Center (GSFC), contains six instruments that will characterize the solar wind and the ionosphere of the planet: •Solar Wind Electron Analyzer (SWEA) •Solar Wind Ion Analyzer (SWIA) •Suprathermal and Thermal Ion Composition (STATIC) •Solar Energetic Particle (SEP) •Langmuir Probe and Waves (LPW) •Magnetometer (MAG) The Remote Sensing Package, built by LASP, will determine global characteristics of the upper atmosphere and ionosphere via remote sensing. •Imaging Ultraviolet Spectrometer (IUVS) The Neutral Gas and Ion Mass Spectrometer (NGIMS), provided by GFSC, will measure the composition and isotopes of neutral ions. Apologies in advance if this has already been answered. (btw I think we do need a MAVEN sticky in future missions) John (Mars) |
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Apr 10 2013, 03:34 AM
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#2
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Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Was it ever explained why the ends of the solar panels are bent inward like that? Does it have to do with the magnetometers? I don't see how that angling would provide more power.
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Apr 10 2013, 04:03 AM
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#3
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
Was it ever explained why the ends of the solar panels are bent...? My guess: So they can be as long as possible and still fit in the fairing? Also, no solar cells are on the bent portions so nothing to do with power, just increasing the length (distance from craft).
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Apr 10 2013, 05:10 AM
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#4
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
My guess: So they can be as long as possible and still fit in the fairing? They have hinges. Fitting isn't a problem. Indeed - having them at the angle they are means they must be BIGGER to provide equivilent power margin compared to entirely 'flat' arrays. QUOTE Also, no solar cells are on the bent portions so nothing to do with power The very first hit for a Google image search of 'MAVEN solar panel' (and indeed every artists impression of MAVEN ever released) shows that there are indeed solar cells on the angled panel http://lasp.colorado.edu/home/maven/files/...solar_panel.jpg |
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Apr 10 2013, 05:31 AM
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#5
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
having them at the angle they are means they must be BIGGER to provide [equivalent] power margin compared to entirely 'flat' arrays. Cosine losses for these small angles are pretty negligible, of course (e.g., cos(10) is 0.98). -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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