[FPSPACE] trouble-shooting ahead - the James Webb

Keith Gottschalk kgottschalk at uwc.ac.za
Sat Nov 15 06:21:52 EST 2014

Noting how often a simple deployment of one panel or one leg can go phut on the ISS or Rosetta, I have always been concerned about the on-orbit deployment of the mirror segments of the James Webb telescope at L2.  If any mirror is out of alignment (or is it collumation?) by even say ten angstroms, two decades of taxpayers' donations ends in heartbreak.

   Would it not make better sense to unfurl everything fully in LEO, & only after confirmed, measured success gently boost it to its L2 destination? This gives a last chance for servicing. It might require merely an astronaut or robonaut to give one good push to make something click into place.

- Keith

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