[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (15nT) IN MAGNETOMETER DATA 18 04 23 1400UT issued 1419 UT on 18 Apr 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

WEAK SUDDEN IMPULSE DETECTED (15nT) IN MAGNETOMETER DATA 18 04 23 1400UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    166.3      178.8       12.5
Darwin_(GA)                    nT    144.9      158.5       13.6
Townsville_(GA)                nT   -583.1     -566.1       17.0
Learmonth_(GA)                 nT    236.7      256.8       20.2
Canberra_(GA)                  nT   -128.3     -112.6       15.7

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