Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 8 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/29/2013   22:28:03   (  -0.43,-135.36) (  -0.56,-135.94)   65.39                80
 08/30/2013   22:11:59   (  -0.43,-135.41) (   0.46,-131.41)  456.16                80
 09/01/2013   10:33:50   (   0.41,-135.53) (   0.67,-136.69)  132.49                80
 09/02/2013   10:12:26   (   0.42,-135.57) (  -0.35,-132.16)  388.30                80
 09/03/2013   22:34:25   (  -0.41,-135.59) (  -0.82,-137.47)  214.66                80
 09/04/2013   22:18:21   (  -0.41,-135.63) (   0.20,-132.95)  306.42                80
 09/06/2013   10:40:10   (   0.39,-135.75) (   0.97,-138.22)  282.27                80
 09/07/2013   10:18:47   (   0.40,-135.78) (  -0.05,-133.69)  238.01                80
 09/08/2013   22:40:45   (  -0.39,-135.78) (  -1.12,-139.00)  367.14                80
 09/09/2013   22:24:42   (  -0.39,-135.81) (  -0.10,-134.47)  153.04                80
 09/11/2013   10:43:52   (   0.38,-135.92) (   1.21,-139.76)  436.54                80