[Geomag-daily] Daily Report 2022-02-27 (58)

[Rossavik, Claudia K]

The following issues were noted earlier today:

ALL (2023-02-27): NOAA SWPC K indices between 5-7 since Feb 26. 18:00 UTC. High (++) auroral activity. NOAA issued G3 Geomagnetic Storm Watch for 2/27/23.

BOU E-Field (2023-02-27): Down due to router issues.
BOU (2023-02-27): Down due to router issues.

BRW (2023-02-24): Spike in F and delta F at 5:01:55.
BRW (2023-02-26): Spike in F and delta F at 14:58:43.

CMO (2023-02-26): Spike in Z/delta F from 14:23:31-14:23:36 followed by drop in delta F.

DED (2023-02-24): Spike in F and delta F at 18:42:50.
DED (2023-02-25): Spikes in Z and delta F at 16:47:39 and 20:54:31.

FRN (2023-02-24): 5-minute gap in all channels from 12:45.
FRN (2023-02-25): Gaps ranging from 2 to 4 minutes in all channels starting at 2:01.

GUA (2023-02-24): 4-minute gap in all GUA and GUT channels from 5:18. Usual day time disturbances in HEZF between 22:00-9:00 UTC.
GUA (2023-02-27): Spike in T-electric from 2:14-2:18. Usual daytime disturbances in HEZF.

HON (2023-02-24): 2-second gap in F/delta F starting at 20:06:48. Disturbance in delta F and temp channels due to maintenance between 19:15-20:53.
HON (2023-02-27): Small spikes in HEZF from 05:05:02-05:05:45 and 05:07:51-05:08:04.

SHU (2023-02-24): 4.9 magnitude earthquake 123 km from Sand Point, AK consistent with step like drop in H values at 11:50 UTC.
SHU (2023-02-25): Spike in F at 15:24. Gap in delta F from 13:00-14:46. 2-second gaps in HEZF channels starting at 14:45:58. Several steps in H signal starting at 18:26:00 and continuing for rest of day following 4.4 magnitude earthquake 114 km away at 18:12 UTC.
SHU (2023-02-26): Irregular steps in H signal that began on 2/25/23 continuing until 2:56:00, at which time H signal steps back to a baseline more similar to that of 2/23/23.

SIT (2023-02-27): T-outside temp channel down.

SJG (2023-02-26): Spiking in delta F between 19:23:44-19:24:22 associated with more gradual disturbances in HEZF. These disturbances occurred during an event seen at all observatories near 19:23 UTC during the maximum of a C2.8 solar flare.

TUC (2023-02-27): Total field temp. channel down.

DST (2023-02-26): USGS DST reached -50 nT near 2023-02-26.
DST (2023-02-27): USGS DST reached -134 nT near 12:03 in line with strong (G2 and G3) geomagnetic storms expected from 2/27-2/28.
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