[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (12nT) IN MAGNETOMETER DATA 12 09 23 1120UT issued 1140 UT on 12 Sep 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

WEAK SUDDEN IMPULSE DETECTED (12nT) IN MAGNETOMETER DATA 12 09 23 1120UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    187.6      196.9        9.3
Darwin_(GA)                    nT    152.4      162.3        9.9
Townsville_(GA)                nT   -583.0     -570.3       12.7
Learmonth_(GA)                 nT    263.1      278.8       15.7
Canberra_(GA)                  nT   -130.8     -117.9       12.9

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