Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2016   22:34:57   (   0.02,-135.15) (  -0.48,-137.50)  267.03                80
 06/08/2016   22:18:51   (   0.01,-135.19) (   0.49,-132.96)  252.89                80
 06/10/2016   10:38:00   (  -0.02,-135.25) (   0.63,-138.25)  340.52                80
 06/11/2016   10:21:54   (  -0.01,-135.28) (  -0.35,-133.71)  179.26                80
 06/12/2016   22:41:12   (   0.03,-135.30) (  -0.78,-139.02)  423.74                80
 06/13/2016   22:25:06   (   0.02,-135.33) (   0.19,-134.48)   95.77                80
 06/15/2016   10:44:14   (  -0.04,-135.39) (   0.92,-139.77)  498.51                80
 06/16/2016   10:28:09   (  -0.03,-135.41) (  -0.05,-135.23)   20.75                80
 06/18/2016   22:28:41   (   0.05,-135.44) (  -0.10,-136.01)   64.87                80
 06/19/2016   22:12:36   (   0.04,-135.46) (   0.94,-131.48)  453.62                80