June 10: Re-Bolt ASCS Interface Plate

• Configuration:

  • ACS: Fully Assembled
  • Mounting: In Dolly, in Square with Radiator Facing Up & Parallel to Floor
  • Cooling: Chillers
  • Optical Source: HRC Coronagraph Backlight
  • Starting Temp: Ambient at Start of Day

• Figures:

  • Stability track: ( GIF, Postscript )

• Results:

  • No "Warm-up" Effect Seen
  • No "Chillers-On" Effect Seen
  • "Chillers Off" Caused ~0.3 pix/hr Motion in Both Axes
  • Changing HRC Set Point had No Effect

• Conclusion:

  • No Significant Difference between ASCS IF Plate Loose vs Bolted