R-HYA

 cycle  Start of Hump (JD)  Days between "hump" starts  End of "hump" (JD)  Length of hump  Date of maxima at start of this cycle  Days between Maxima  Days from Mxima to start of "hump"
 cycle+1              
 current              
 cycle-1              
 cycle-2              
 cycle-3              
 cycle-4              
 cycle-5              
 cycle-6              
 cycle-7