Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2013   22:28:46   (  -0.20,-134.79) (  -0.44,-135.97)  134.16                80
 10/17/2013   22:12:42   (  -0.21,-134.75) (   0.55,-131.43)  378.59                80
 10/19/2013   10:31:50   (   0.18,-134.75) (   0.63,-136.70)  222.30                80
 10/20/2013   10:15:46   (   0.20,-134.71) (  -0.36,-132.16)  289.89                80
 10/21/2013   22:35:03   (  -0.16,-134.58) (  -0.82,-137.46)  329.57                80
 10/22/2013   22:18:58   (  -0.18,-134.53) (   0.17,-132.93)  182.46                80
 10/24/2013   10:38:08   (   0.14,-134.52) (   0.94,-138.21)  419.14                80
 10/25/2013   10:22:02   (   0.16,-134.47) (   0.00,-133.66)   92.45                80
 10/27/2013   22:22:35   (  -0.14,-134.28) (  -0.17,-134.43)   16.82                80
 10/28/2013   22:06:31   (  -0.15,-134.23) (   0.83,-129.89)  494.52                80