[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (14nT) IN MAGNETOMETER DATA 17 01 26 0610UT issued 0628 UT on 17 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (14nT) IN MAGNETOMETER DATA 17 01 26 0610UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    261.7      269.9        8.2
Darwin_(GA)                    nT    156.4      164.8        8.3
Darwin                         nT     48.4       58.9       10.5
Townsville_(GA)                nT   -643.0     -629.6       13.4
Townsville                     nT   -835.6     -823.0       12.6
Townsville_(ICSWSE/BOM)        nT    -85.7      -72.5       13.2
Learmonth_(GA)                 nT    332.5      347.6       15.1
Learmonth_(SWS)                nT   -948.4     -933.3       15.1
Canberra_(GA)                  nT   -183.0     -163.3       19.8
Hobart                         nT   -554.2     -527.5       26.8

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