[Kara, Jenne, Sheila]

We took a suite of core noise budget injection measurements, to check our status with the new alignment we've been using the last week or so.  Note that we have taken measurements for the LSC FF to be updated, but have not done the update yet.  Note also that these were done with the squeezer off (usually we do them with the squeezer on).  The injections are large enough that that shoulndn't significantly impact our ability to estimate the noise TFs.

We took injections for:

• IMC_PZT_[P,Y] for laser jitter
• ISS for intensity noise
  • First, as title in DTT template suggests, we turned off the 10Hz pole, and set the gain in the digital excitation filter bank to 1 so that the injection could go through.
• Frequency noise
  • First moved CARM over to only one REFL PD by stepping the summing node gains.  We stepped side A input 2 up by 1 and side B input 2 down by 1, and repeated this 6 times for a total of 6dB change.  Then, we stepped side B input 2 down all the way to -32dB to completely bring the second PD (I think this is REFL B?) out of loop.
  • Enabled the excitation on the LSC common mode board
• MICH (LSC)
• PRCL
• SRCL
• CHARD pit and yaw
• DHARD pit and yaw

We also had some quiet time with no squeezing.