Requirement #594 


For variable: Ionospheric Vertical Total Electron Content (VTEC)

In application: Space Weather

Goal Breakthrough Threshold
Uncertainty 0.1 TECU 0.5 TECU 2 TECU
Stability/decade (if applicable)
Horizontal Resolution 100 km 200 km 500 km
Vertical Resolution
Observing Cycle 5 min 15 min 60 min
Timeliness 60 sec 10 min 60 min


Validated: 5/1/11 Source: ICTSW-1
Comment: TEC determination Confidence: tentative
Def: :Positive impact expected but not yet validated due to lack of suitable data and/or models