Delay Analysis

: TSSA and CTSI shows delay or lag wrt each other 1,3,5 . Solar cycle data (21,22,23) is used in the analysis and possible correlation between H alpha flare index and delay is worked out .It is found that these two parameters are anti correlated with a correlation factor of 0.8 9427 . The 27day solar activity shows heighest correlation factor. A new parameter called delay index number ( D I ) is defined.This paramter shows two sharp peaks wrt delay event number ,during the span of solar cycle 21,22,23. The peaks fall in soalr quite period 1986 and 1996. Thus D I acts as an indicator of quite phase (ie solar minima )of sun.The possible cause for sharp shoot up is under investigation.