Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2014   22:48:42   (  -0.27,-135.29) (  -1.12,-138.97)  420.43                80
 09/28/2014   22:32:38   (  -0.28,-135.30) (  -0.11,-134.44)   97.97                80
 10/01/2014   10:33:02   (   0.26,-135.32) (   0.25,-135.18)   15.77                80
 10/03/2014   22:36:15   (  -0.24,-135.34) (  -0.40,-135.95)   70.29                80
 10/04/2014   22:20:10   (  -0.25,-135.35) (   0.61,-131.42)  447.15                80
 10/06/2014   10:39:18   (   0.23,-135.35) (   0.52,-136.69)  153.65                80
 10/07/2014   10:23:14   (   0.24,-135.35) (  -0.49,-132.16)  363.31                80
 10/08/2014   22:42:31   (  -0.21,-135.35) (  -0.66,-137.47)  241.24                80
 10/09/2014   22:26:26   (  -0.23,-135.35) (   0.30,-132.93)  275.77                80
 10/11/2014   10:45:34   (   0.20,-135.35) (   0.83,-138.20)  325.33                80