Real Time T Indices

Below is real time T index information based on several hours of autoscaled data. Real time T will depart from monthly predicted T during disturbances. A value of 999 indicates that no autoscaled data is available.

(last updated 08 Oct 2025 19:20 UT)

REAL TIME T INDICES FOR NORTHERN HEMISPHERE AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES 08 10 25 19 UT Northern hemisphere T index: 114 REAL TIME T INDICES FOR SOUTHERN HEMISPHERE AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES Southern hemisphere T index: 99 REAL TIME T INDICES FOR AUSTRALIAN REGION AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES 08 10 25 19 UT Northern Equatorial Australian Region T index: 122 Northern Australian Region T index: 110 Southern Australian Region T index: 101 Australian Region T index: 108 REAL TIME T INDEX FOR ANTARCTIC REGION AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES Antarctic Region T index: 49