[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (45nT) IN MAGNETOMETER DATA 01 09 25 2059UT issued 2119 UT on 01 Sep 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (45nT) IN MAGNETOMETER DATA 01 09 25 2059UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    263.3      299.8       36.5
Darwin_(GA)                    nT    173.2      213.8       40.7
Darwin                         nT     85.1      135.6       50.4
Townsville_(GA)                nT   -593.7     -547.0       46.7
Townsville                     nT   -912.9     -865.6       47.3
Townsville_(ICSWSE/BOM)        nT    136.1      182.4       46.3
Learmonth_(GA)                 nT    342.3      400.0       57.8
Learmonth_(SWS)                nT   -917.7     -859.7       58.0
Canberra_(GA)                  nT   -147.6     -111.6       36.0
Hobart                         nT   -377.0     -338.1       38.9

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au