Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2014   10:16:25   (  -0.01,-135.17) (  -0.69,-132.25)  333.51                80
 03/30/2014   22:41:05   (   0.01,-135.20) (  -0.54,-137.55)  267.46                80
 03/31/2014   22:19:43   (   0.01,-135.23) (   0.52,-133.03)  251.17                80
 04/02/2014   10:44:15   (  -0.01,-135.27) (   0.68,-138.30)  345.22                80
 04/03/2014   10:22:53   (  -0.01,-135.30) (  -0.38,-133.78)  172.94                80
 04/04/2014   22:44:52   (   0.00,-135.32) (  -0.84,-139.09)  429.21                80
 04/05/2014   22:28:50   (   0.01,-135.34) (   0.17,-134.56)   88.87                80
 04/08/2014   10:29:20   (  -0.00,-135.39) (  -0.04,-135.31)    9.87                80
 04/10/2014   22:32:37   (   0.00,-135.42) (  -0.15,-136.09)   76.07                80