Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 9 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2014   10:32:54   (   0.34,-134.99) (   0.40,-135.16)   20.25                80
 09/16/2014   10:16:51   (   0.34,-135.02) (  -0.65,-130.64)  499.74                80
 09/17/2014   22:36:08   (  -0.32,-135.07) (  -0.53,-135.94)  100.06                80
 09/18/2014   22:20:05   (  -0.33,-135.10) (   0.52,-131.42)  419.82                80
 09/20/2014   10:39:13   (   0.30,-135.14) (   0.66,-136.69)  176.38                80
 09/21/2014   10:23:08   (   0.31,-135.17) (  -0.34,-132.15)  343.07                80
 09/22/2014   22:42:27   (  -0.29,-135.20) (  -0.79,-137.47)  257.98                80
 09/23/2014   22:26:22   (  -0.30,-135.23) (   0.21,-132.94)  261.44                80
 09/25/2014   10:45:31   (   0.28,-135.27) (   0.91,-138.22)  335.22                80
 09/26/2014   10:29:27   (   0.29,-135.29) (  -0.09,-133.68)  183.59                80
 09/27/2014   22:48:44   (  -0.27,-135.31) (  -1.09,-138.99)  419.25                80