Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2014   10:38:55   (   0.03,-135.35) (   0.38,-136.84)  171.00                80
 04/30/2014   10:17:32   (   0.03,-135.33) (  -0.66,-132.32)  343.45                80
 05/01/2014   22:39:31   (  -0.04,-135.30) (  -0.57,-137.62)  264.18                80
 05/02/2014   22:23:28   (  -0.04,-135.28) (   0.47,-133.09)  250.21                80
 05/04/2014   10:45:17   (   0.04,-135.26) (   0.76,-138.35)  352.72                80
 05/05/2014   10:23:55   (   0.04,-135.24) (  -0.28,-133.83)  161.26                80
 05/06/2014   22:45:53   (  -0.05,-135.20) (  -0.94,-139.12)  447.54                80
 05/07/2014   22:29:51   (  -0.05,-135.18) (   0.11,-134.60)   66.39                80
 05/10/2014   10:32:58   (   0.05,-135.12) (   0.07,-135.33)   23.88                80
 05/11/2014   10:11:34   (   0.05,-135.09) (  -0.92,-130.80)  489.48                80