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 17 May 2026 17:00 UT)

REAL TIME T INDICES FOR NORTHERN HEMISPHERE AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES 17 05 26 17 UT Northern hemisphere T index: 67 REAL TIME T INDICES FOR SOUTHERN HEMISPHERE AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES Southern hemisphere T index: 70 REAL TIME T INDICES FOR AUSTRALIAN REGION AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES 17 05 26 17 UT Northern Equatorial Australian Region T index: 56 Northern Australian Region T index: 60 Southern Australian Region T index: 39 Australian Region T index: 54 REAL TIME T INDEX FOR ANTARCTIC REGION AUTO SCALED DATA IS USED TO PRODUCE THESE INDICES Antarctic Region T index: 39