[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (14nT) IN MAGNETOMETER DATA 17 04 25 0403UT issued 0419 UT on 17 Apr 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (14nT) IN MAGNETOMETER DATA 17 04 25 0403UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    221.1      232.3       11.2
Darwin_(GA)                    nT    139.7      149.8       10.2
Darwin                         nT     29.8       42.7       13.0
Townsville_(GA)                nT   -652.3     -640.0       12.3
Townsville                     nT   -797.3     -785.0       12.3
Townsville_(ICSWSE/BOM)        nT   -104.6      -92.2       12.3
Learmonth_(GA)                 nT    275.8      293.1       17.3
Learmonth_(SWS)                nT    135.0      152.4       17.4
Canberra_(GA)                  nT   -220.7     -203.6       17.0
Hobart                         nT   -734.3     -712.4       21.9

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