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VIS (PR2)
fabian.arellano - 14:26 Friday 09 April 2021 (16440) Print this report
Comment to Tightening of the inner wire locating clamps. (16417)

With Hirata-san.

Summary: the payload seems to be hanging free now, but we were unable to measure transfer functions due to a problem likely in the real-time model.

See pictures in album PR2 Remedying Work.

  • We re-assembled and released the payload and realized it had a lot of negative pitch (I wrote positive in the previous klog, sorry) and at least one OSEM flag was touching.
    • We corrected the pitch with the picomotor.
    • We also moved the BF keystone close to nominal position with the fishing rod.
    • Then we corrected IM yaw with the picomotor.
  • We found picomotor cables and stepper motor cables disconnected, so we connected them beofre being able to use them.
  • By the end of today's work the IM seemed to be hanging free.
  • We tried to measure TFs, but it seems the actuation is not going through because of a problem in the real-time model. Miyo-kun and Ikeda-san will take a look.
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