| CSTA Station Upgrades! | CSTA in Coushatta, LA, has been upgraded to an Alloy receiver and Zephyr Geodetic 3 GNSS antenna. These upgrades support all the latest satellite constellations, including BeiDou satellites. | 5/15/2024 | 8/1/2024 | Info |
| Solar Cycle 25 | We are approaching the peak years of the latest solar cycle (the 25th since the phenomenon was tracked), which will peak in 2025.
During this period, space weather events like solar flares and coronal mass ejections (CME) will occur. During such events that can last one or more days, you may experience long fix times, inability to fix, or high residuals.
Note that such events are not frequent; we’ve only had a handful over the past 20 years. However, if you are experiencing such field difficulties, space weather could be a contributing factor.
Read more about this on our space weather page, which can be found here: https://c4g.lsu.edu/index.php/rtn/space-weather-gps.
We have added links to our http://C4Gnet.XYZ website that allow you to see the locally derived ionosphere Index (I95) and the predicted ionospheric/geometric errors, which indicate the estimated impact you could expect in a rover measurement. The I95 represents current conditions. If you see the index in the red for one or more hours, you might experience the effects noted above.
Here is a link to the NOAA Space Weather Prediction 3-day Forecast: https://www.swpc.noaa.gov/products/3-day-forecast
The forecast is expressed as Kp Index. If you see a Kp of 6+, then you might experience the effects noted above. By looking at current Kp values, and the locally derived I95, you can get a sense of what to expect. | 4/10/2024 | 5/17/2026 | Warning |
| WINF Station Upgrades! | WINF in Winnfield, LA, has been upgraded to an Alloy receiver and Zephyr Geodetic 3 GNSS antenna. These upgrades support all the latest satellite constellations, including BeiDou satellites. | 5/21/2024 | 8/21/2024 | Info |
| HOMR CORS Added | A New CORS was installed at Homer High School with the Station ID of HOMR. The raw data is available on http://CORS.LSU.EDU, and it is now part of the C4Gnet.XYZ Real-Time Network. | 5/30/2024 | 10/31/2024 | Info |
| RTX clocks and orbits outage (resolved) | We were facing severe issues with our RTX service that provides the clocks and orbits for our PPP mountpoints resulting in an availability issue on some mountpoints. The VRS mountpoints were not impacted by this as they use different methods to process the raw GNSS data. Trimble's Advanced Positioning team worked to resolve these issues that were related to the Crowdstrike deployed update that crashed Windows systems worldwide.
This issue started 19.07.2024 around 04:30am UTC and was resolved by 19.07.2024 05:54am UTC. | 7/19/2024 | 8/1/2024 | Alert |