Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 9 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/06/2014   22:42:10   (  -0.36,-134.53) (  -1.02,-137.42)  328.97                80
 09/07/2014   22:26:07   (  -0.36,-134.48) (   0.02,-132.89)  181.04                80
 09/09/2014   10:45:18   (   0.34,-134.35) (   1.18,-138.16)  433.92                80
 09/10/2014   10:29:14   (   0.35,-134.29) (   0.20,-133.63)   75.51                80
 09/12/2014   22:29:50   (  -0.34,-134.16) (  -0.37,-134.40)   27.04                80
 09/13/2014   22:13:47   (  -0.35,-134.10) (   0.61,-129.87)  482.52                80
 09/15/2014   10:32:57   (   0.33,-133.97) (   0.58,-135.14)  133.15                80
 09/16/2014   10:16:53   (   0.34,-133.90) (  -0.40,-130.60)  375.57                80
 09/17/2014   22:36:12   (  -0.31,-133.82) (  -0.81,-135.90)  238.20                80
 09/18/2014   22:20:09   (  -0.32,-133.75) (   0.24,-131.38)  270.76                80