Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2014   10:27:18   (  -0.12,-135.11) (  -0.06,-135.26)   17.98                80
 01/20/2014   22:30:32   (   0.12,-135.18) (  -0.09,-136.03)   97.61                80
 01/21/2014   22:14:29   (   0.12,-135.21) (   0.94,-131.51)  421.71                80
 01/23/2014   10:36:18   (  -0.12,-135.24) (   0.21,-136.78)  175.27                80
 01/24/2014   10:14:55   (  -0.12,-135.26) (  -0.81,-132.25)  343.41                80
 01/25/2014   22:36:52   (   0.12,-135.29) (  -0.41,-137.54)  257.63                80
 01/26/2014   22:20:49   (   0.11,-135.30) (   0.62,-133.01)  260.67                80
 01/28/2014   10:42:38   (  -0.11,-135.32) (   0.53,-138.28)  337.54                80
 01/29/2014   10:21:13   (  -0.11,-135.33) (  -0.45,-133.74)  180.18                80
 01/30/2014   22:43:12   (   0.11,-135.34) (  -0.71,-139.05)  422.34                80