Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 9 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/01/2014   22:35:46   (  -0.38,-134.74) (  -0.67,-135.89)  132.07                80
 09/02/2014   22:19:44   (  -0.39,-134.68) (   0.37,-131.37)  377.43                80
 09/04/2014   10:38:54   (   0.37,-134.54) (   0.82,-136.64)  238.30                80
 09/05/2014   10:22:51   (   0.37,-134.47) (  -0.16,-132.10)  270.43                80
 09/06/2014   22:42:10   (  -0.36,-134.40) (  -1.01,-137.41)  342.66                80
 09/07/2014   22:26:07   (  -0.36,-134.33) (  -0.03,-132.88)  166.23                80
 09/09/2014   10:45:17   (   0.35,-134.20) (   1.21,-138.15)  449.46                80
 09/10/2014   10:29:13   (   0.35,-134.13) (   0.23,-133.61)   58.91                80
 09/12/2014   22:29:48   (  -0.35,-133.97) (  -0.47,-134.37)   47.33                80
 09/13/2014   22:13:46   (  -0.35,-133.89) (   0.58,-129.85)  461.11                80
 09/15/2014   10:32:55   (   0.33,-133.75) (   0.65,-135.11)  155.33                80