Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 4 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)
 04/08/2014   10:29:19   (   0.01,-135.40) (  -0.01,-135.31)   10.35                80
 04/10/2014   22:35:16   (  -0.01,-135.43) (  -0.18,-136.08)   75.08                80
 04/11/2014   22:13:54   (  -0.01,-135.44) (   0.90,-131.57)  442.39                80
 04/13/2014   10:38:25   (   0.01,-135.47) (   0.33,-136.83)  155.60                80
 04/14/2014   10:17:02   (   0.00,-135.48) (  -0.68,-132.30)  361.38                80
 04/15/2014   22:41:42   (  -0.01,-135.48) (  -0.51,-137.61)  243.04                80
 04/16/2014   22:20:19   (  -0.00,-135.49) (   0.51,-133.08)  273.51                80
 04/18/2014   10:44:50   (   0.00,-135.50) (   0.65,-138.36)  325.94                80
 04/19/2014   10:23:28   (   0.00,-135.50) (  -0.38,-133.83)  189.99                80
 04/20/2014   22:45:27   (  -0.00,-135.48) (  -0.81,-139.14)  416.10                80