[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 01 01 26 0836UT issued 0858 UT on 01 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 01 01 26 0836UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    268.1      274.5        6.4
Darwin_(GA)                    nT    165.1      172.1        7.1
Darwin                         nT     58.6       67.9        9.2
Townsville_(GA)                nT   -620.0     -610.8        9.2
Townsville                     nT   -742.4     -732.9        9.5
Townsville_(ICSWSE/BOM)        nT   -279.2     -269.9        9.4
Learmonth_(GA)                 nT    327.8      339.3       11.5
Learmonth_(SWS)                nT   -948.4     -937.0       11.4
Canberra_(GA)                  nT   -153.6     -144.7        8.9
Hobart                         nT   -494.4     -486.2        8.2

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