SRB WARNING SYSTEM FOR GNSS APPLICATIONS IN EUROPE

Contact: iono@oma.be
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Last update : 2017-09-22 00:29:30 UTC L1 L2
Last 15min
Last 24h
Last week

Events of the last 30 days:

Frequency Date of the maximum fade Maximum fade
(in dB/Hz)
Beginning of the event (fade<-1dB/Hz) End of the event (fade>-1dB/Hz)
L12017-09-07 14:36:00-1.75±0.862017-09-07 14:36:002017-09-07 14:36:30
L22017-09-07 14:36:00-1.25±0.972017-09-07 14:36:002017-09-07 14:37:30
L22017-09-07 10:16:00-1±0.592017-09-07 10:16:002017-09-07 10:16:30
L12017-09-06 13:07:30-1±0.52017-09-06 13:07:302017-09-06 13:08:00
L12017-09-06 13:05:00-1±0.522017-09-06 13:05:002017-09-06 13:05:30
L22017-09-06 13:03:30-2.75±0.912017-09-06 12:56:302017-09-06 13:20:00
L22017-09-06 12:20:30-1±0.522017-09-06 12:20:302017-09-06 12:21:00
L22017-09-06 12:08:30-2±1.082017-09-06 12:08:302017-09-06 12:10:00
L22017-09-06 12:02:30-6.25±1.62017-09-06 12:01:002017-09-06 12:04:30
L12017-09-06 12:01:30-1±0.612017-09-06 12:01:302017-09-06 12:02:30

To detect Solar Radio Burst (SRB) affecting the GNSS signal reception in Europe, the carrier to noise density (C/N0) of the real-time EPN GPS network are monitored in near-real time (updated every 15 minutes). The intensity of the SRB impacts on GNSS applications are indexed at 4 levels:

  • quiet
  • moderate : SRB detected but should not impact GNSS applications,
  • strong : potential impact on GNSS applications,
  • severe : potential failure of the GNSS receivers.

Previous SRB Events at the GNSS frequencies