Displaying report 1-1 of 1.
Reports until 17:19, Monday 28 July 2025
H1 INJ
matthewrichard.todd@LIGO.ORG - posted 17:19, Monday 28 July 2025 (86044)
Instructions for running ISS SECONDLOOP RIN injection script

In trying to measure the transfer functions of RIN around the interferometer, I wrote a script based off of Craig's old scripts which do these injections. If there is 25 minutes of commissioning time no one knows what to do with and we find ourselves with a locked and thermalized IFO, it would be great to run this script.


The script is not totally polished yet but essentially you can look at the yaml file I've put here and see what will be injected. When you run the script, the injection points will be activated, and then the script will turn on excitations and begin measuring the response.

The first step is to go to the repository and activate the right environment

cd /ligo/gitcommon/iss_noise_measurements
conda activate labutils

From here you can look at the injection init file I've prepared

injections_post_vent.yaml

Each of these "cells" contains a bandlimited excitation, which can be commented out to exclude from the overall injection.

By running the following line of code, you can execute the injections that are not commented out in the yaml file. Each injection should take about 25 minutes as they stand now.:

python iss_noise_injection_caller.py --file injections_post_vent.yaml 
Displaying report 1-1 of 1.