[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (28nT) IN MAGNETOMETER DATA 17 12 23 0737UT issued 0758 UT on 17 Dec 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

WEAK SUDDEN IMPULSE DETECTED (28nT) IN MAGNETOMETER DATA 17 12 23 0737UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    163.3      179.9       16.7
Darwin_(GA)                    nT    111.0      129.5       18.4
Townsville_(GA)                nT   -630.4     -603.8       26.6
Townsville                     nT   -479.9     -454.2       25.7
Townsville_(ICSWSE/BOM)        nT   -194.0     -168.5       25.6
Learmonth_(GA)                 nT    242.6      273.0       30.4
Learmonth_(SWS)                nT    110.9      141.4       30.5
Canberra_(GA)                  nT   -159.2     -120.0       39.1
Hobart                         nT    808.8      855.3       46.6

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