Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 10 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/12/2016   10:15:12   (   0.23,-135.05) (  -0.44,-132.13)  333.11                80
 10/13/2016   22:34:29   (  -0.20,-134.97) (  -0.73,-137.44)  281.49                80
 10/14/2016   22:18:23   (  -0.21,-134.93) (   0.22,-132.90)  231.22                80
 10/16/2016   10:37:32   (   0.19,-134.91) (   0.94,-138.18)  373.11                80
 10/17/2016   10:21:27   (   0.20,-134.87) (  -0.07,-133.65)  138.76                80
 10/18/2016   22:40:45   (  -0.18,-134.76) (  -1.10,-138.96)  477.98                80
 10/19/2016   22:24:39   (  -0.19,-134.72) (  -0.15,-134.42)   33.87                80
 10/22/2016   10:25:03   (   0.18,-134.64) (   0.29,-135.17)   60.02                80
 10/23/2016   10:08:58   (   0.19,-134.59) (  -0.72,-130.64)  451.01                80
 10/24/2016   22:28:15   (  -0.16,-134.48) (  -0.50,-135.95)  167.10                80
 10/25/2016   22:12:10   (  -0.17,-134.43) (   0.52,-131.42)  344.21                80