[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 20 03 26 1527UT issued 1543 UT on 20 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 20 03 26 1527UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    268.2      275.1        6.8
Darwin_(GA)                    nT    162.1      170.0        8.0
Townsville_(GA)                nT   -621.9     -611.6       10.3
Townsville                     nT   -849.2     -839.2       10.0
Townsville_(ICSWSE/BOM)        nT     88.0       98.0       10.0
Learmonth_(GA)                 nT    341.1      352.2       11.1
Learmonth_(SWS)                nT   -950.1     -939.1       11.0
Canberra_(GA)                  nT   -168.4     -157.6       10.8
Hobart                         nT   -712.3     -701.9       10.4

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