Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/30/2014   10:17:32   (   0.04,-135.33) (  -0.67,-132.32)  343.75                80
 05/01/2014   22:39:31   (  -0.04,-135.31) (  -0.56,-137.62)  263.60                80
 05/02/2014   22:23:28   (  -0.04,-135.29) (   0.48,-133.09)  250.83                80
 05/04/2014   10:45:18   (   0.04,-135.26) (   0.75,-138.35)  352.36                80
 05/05/2014   10:23:55   (   0.05,-135.24) (  -0.29,-133.83)  161.63                80
 05/06/2014   22:45:53   (  -0.05,-135.20) (  -0.94,-139.12)  446.91                80
 05/07/2014   22:29:51   (  -0.05,-135.18) (   0.11,-134.60)   67.04                80
 05/10/2014   10:32:58   (   0.05,-135.13) (   0.07,-135.34)   23.42                80
 05/11/2014   10:11:34   (   0.05,-135.10) (  -0.91,-130.80)  489.91                80
 05/12/2014   22:33:33   (  -0.05,-135.05) (  -0.31,-136.10)  120.18                80