Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2018   18:16:38   (  -0.02, -75.21) (   0.54, -72.68)  288.56                80
 04/15/2018   06:38:26   (   0.02, -75.22) (   0.63, -77.95)  311.24                80
 04/16/2018   06:17:01   (   0.01, -75.23) (  -0.38, -73.42)  205.93                80
 04/17/2018   18:38:59   (  -0.01, -75.25) (  -0.77, -78.73)  396.45                80
 04/18/2018   18:22:54   (  -0.01, -75.26) (   0.24, -74.20)  121.03                80
 04/20/2018   06:44:43   (   0.01, -75.27) (   0.93, -79.47)  478.15                80
 04/21/2018   06:23:18   (   0.01, -75.28) (  -0.08, -74.94)   39.27                80
 04/23/2018   18:26:30   (  -0.02, -75.32) (  -0.12, -75.71)   44.85                80
 04/24/2018   18:10:25   (  -0.02, -75.34) (   0.89, -71.18)  473.39                80
 04/26/2018   06:32:14   (   0.02, -75.36) (   0.28, -76.45)  124.31                80