Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/29/2014   22:34:35   (   0.10,-135.44) (  -0.05,-136.07)   71.73                80
 06/30/2014   22:18:31   (   0.09,-135.43) (   0.98,-131.54)  444.30                80
 07/02/2014   10:37:40   (  -0.10,-135.42) (   0.19,-136.80)  157.12                80
 07/03/2014   10:21:37   (  -0.10,-135.41) (  -0.83,-132.27)  358.59                80
 07/04/2014   22:40:54   (   0.11,-135.39) (  -0.38,-137.56)  248.00                80
 07/05/2014   22:24:51   (   0.11,-135.38) (   0.64,-133.04)  267.31                80
 07/07/2014   10:44:00   (  -0.13,-135.36) (   0.53,-138.30)  335.35                80
 07/08/2014   10:27:57   (  -0.12,-135.34) (  -0.50,-133.77)  179.35                80
 07/09/2014   22:47:14   (   0.14,-135.30) (  -0.71,-139.06)  428.96                80
 07/10/2014   22:31:10   (   0.14,-135.28) (   0.32,-134.53)   85.25                80