GWOSC and Auxiliary Data – Combining LIGO style detectors with all earth-based sensor networks
Correlating LIGO style strain and auxiliary data with all data from earth-based sensor networks
If you put things on the Internet that only people with very specific tools can use, then it is not really “open”.
Some time ago, you released 3 hours of auxiliary data and I wrote to you about ways to improve your methods. That link at https://www.gw-openscience.org/auxiliary/GW170814/ is better than what you just wrote by far, but much less than useful for any serious questions.
I have been writing to you since May 2019 asking about basic data. What I want to do is simple. I could have been done years ago. But every time you “share” it is only on your terms and in your favorite ways, and not Internet-wide common formats accessible to the 5 billion people using the Internet now.
The LIGO style detectors CAN be used to scan the earth and solar system. But it won’t happen if you take years to learn how to share in truly accessible forms. For EVERY second of every strain data file, there should be a parallel set of auxiliary data streams. I looked very closely at the strain data and it has a LOT of noise from earth in it, that can be identified, correlated with earth-based networks and carefully separated and used. And that can only be sorted out with ALL the auxiliary data.
Are there any people there older than 30 or 50? I am 74 now and I do not have a lot more years to wait for someone who understands databases and simple programming. All the “auxiliary data” really needs to be in a department or group that cares about earth and solar system “noise”, not treated as something to be eliminated. I wanted to combine the LIGO sensors into earth-based gravitational and geophysics and other sensor networks, but I think I am not going to live long enough to see that even get started. A simple demo to track the moon, or scan the interior of the earth, or track earthquake seismic waves would be a good start. It is NOT hard, just tedious, requiring care and close attention to details.
Richard Collins, The Internet Foundation
> On 03/10/2023 5:23 PM CST firstname.lastname@example.org wrote:
> Dear GWOSC User Group,
> GWOSC has recently released a new type of data set!
> The LIGO instrument at each site uses a large number of sensors to track the state of both the instrument and the surrounding environment. A subset of those sensors (channels) are used as part of astrophysical analyses by the LIGO-Virgo-KAGRA collaboration. The particular subset of channels provided here has been used to remove additional noise from LIGO data or to improve the quality of the astrophysical analyses.
> This data set includes 40 channels from LIGO Hanford and 46 channels from LIGO Livingston, that were used in O3 astrophysical analyses. The data set has a total size of 13 TB. This data set includes channels that were used to create data quality flags, to subtract instrumental noise from the strain data, and to measure the amount of correlated noise between the gravitational-wave detectors.
> Learn more at: gwosc.org/O3/auxiliary/
> Best Regards,
> The GWOSC Team
> Contact Email: email@example.com