Engineering 2012MayJun

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Computer OSes

  • May 27: Debian Lenny source packages were moved to archive.debian.org. FB updated the packages to reflect this.
  • May 27: aptitude on wolverine found more than 65535 (16bit limit) packages to update, causing a bug. FB updated the apt cache size, then updated the distribution source by source.
  • May 27: current status = we have the final versions of all Debian Lenny packages (gcc 4.3.2, python 2.5.2, pygtk 2.12.1, gtk 2.12.12)
  • May 28: also upgraded lothlorien to ease work on CHAMP

CHAMP -- hardware

  • May 26: Larry started pumping CHAMP
  • May 27: vacuum ~ 2e-3
  • May 28: vacuum reached 1.0e-3, so not quite ready for pumping.
  • May 29: CHAMP cool, pressure ~7e-7
  • May 29: Despite attempts to reproduce hardware crashes/freezes from last run, none have happened so far.

CHAMP -- software

  • May 28: fixed CVS that had been erased from ctrscrut due to a HDD failure in Jan/Feb. Fixed all memory leaks on spooler and astropci reported by cppcheck, especially realloc issues. Reintroduced star info and uv info to spooler, hopefully compatible with CHARA libraries (tests TBD).
  • May 29: worked on spooler code, now fully functional, i.e. star + uv info (though this uses partially the old method). Tried unsuccessfully to reproduce the "negative ftnum bug".
  • May 30: cleaned up a lot of the python code and debug of automatic calibration -- would need consecutive spots to fully try.
  • May 31: continued Pico automatic calibration and automatic spiral search. Spot detection routine not robust yet but spiral search works on single spot. Made backup of code + added to CVS the new spooler code.
  • Jun 1-2 : been working on the aligment GUI, fixed many bugs, see

https://www.astro.lsa.umich.edu/intra/research/monnier/internal/index.php/CHAMP_bugs_to_fix

Final final cophasing of MIRC+CHAMP with CHARA

Nightly Log

  • UT June 8, 2012

got lab fringes on beams 1,2

got sky fringes on beams 1,2 (w1-s2).

mirc found fringes with S2 at 5.8mm, we had to move s2 to 7.1mm, so a change of 1.3mm (hmmmm?)

but we tooks some data 2012Jun08/champ0001-0002 and later background files.

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