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Information on sites of the four FPIs used in this study
| Site Name | Geographic Coordination | Emissions | Availability |
|---|---|---|---|
| Urbana Atmospheric Observatory, Illinois | 40.17° N, 88.16° W | Red | Jan 2020-Jul 2022 |
| Lowell Observatory, Arizona | 35.20° N, 111.66° W | Red, Green | Aug 2021-Jul 2022 |
| Bear Lake Observatory, Utah | 41.60° N, 111.60° W | Red, Green | Aug 2021-Jul 2022 |
| Christmas Valley Observatory, Oregon | 43.24° N, 120.67° W | Red, Green | Dec 2021-Jul 2022 |
