Today I have finished the recovery of SR2. Temperature of 24.8 ºC (Yesterday it was at 25.3 ºC). But still around the requested temperature.
For the IP stage, the current position is:
- IP Long: -36 µm.
- IP Transv: -25 µm.
- IP Yaw: +4270 µrad.
This was done by moving the stepper motors of the Horizontal fishing rods.
| Before [steps] | Current [steps] | |
| IP H1 (Motor 0) | -140,000 | -380,000 |
| IP H2 (Motor 1) | +230,000 | -30,000 |
| IP H3 (Motor 2) | -120,000 | -380,000 |
For the GAS Chain stage, the current position is :
- BF GAS: 0 µm.
- F1 GAS: 3 µm.
- F0 GAS: -1125 µm.
This was done by moving the stepper motors of the Vertical fishing rods.
| Before [steps] | Current [steps] | |
| BF GAS (Motor 0) | -120,000 | -41,500 |
| F1 GAS (Motor 1) | +322,000 | -112,000 |
| F0 GAS (Motor 2) | +145,000 | +800,000 |
For the IM stage, I have left the amount of pitch there, because it was like that before pumpdown.
- IM Pitch: +1305 µrad.
- IM Roll: -26 µrad.
- IM Yaw: +88 µrad.
And finally for the Mirror stage (I have centered the position using the IM picomotors):
- SR2 Pitch: -1 µrad.
- SR2 Yaw: 0 µrad.
The suspension seems to be healthy. I attach here the TF of the system comparing the performance before and after pumpdown.
