Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 6 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2014   22:24:34   (   0.05,-135.44) (   0.58,-133.06)  271.18                80
 06/21/2014   10:43:43   (  -0.07,-135.45) (   0.59,-138.33)  328.25                80
 06/22/2014   10:27:40   (  -0.06,-135.45) (  -0.43,-133.80)  188.50                80
 06/23/2014   22:46:58   (   0.08,-135.45) (  -0.74,-139.10)  416.63                80
 06/24/2014   22:30:55   (   0.07,-135.44) (   0.29,-134.57)   99.84                80
 06/27/2014   10:34:01   (  -0.09,-135.44) (  -0.15,-135.31)   15.96                80
 06/29/2014   22:34:34   (   0.09,-135.42) (  -0.05,-136.07)   74.37                80
 06/30/2014   22:18:31   (   0.09,-135.41) (   0.98,-131.54)  441.54                80
 07/02/2014   10:37:40   (  -0.10,-135.40) (   0.19,-136.80)  159.76                80