Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/10/2018   18:39:37   (   0.00, -75.23) (  -0.79, -78.74)  400.14                80
 10/11/2018   18:23:32   (   0.00, -75.24) (   0.24, -74.21)  117.16                80
 10/13/2018   06:45:20   (  -0.00, -75.26) (   0.96, -79.48)  481.63                80
 10/14/2018   06:23:55   (  -0.00, -75.27) (  -0.07, -74.96)   35.89                80
 10/16/2018   18:27:07   (   0.01, -75.30) (  -0.06, -75.74)   49.42                80
 10/17/2018   18:11:02   (   0.01, -75.32) (   0.91, -71.20)  468.63                80
 10/19/2018   06:32:50   (  -0.02, -75.35) (   0.23, -76.48)  128.99                80
 10/20/2018   06:11:25   (  -0.02, -75.37) (  -0.81, -71.96)  389.41                80
 10/21/2018   18:33:21   (   0.02, -75.40) (  -0.42, -77.26)  212.28                80
 10/22/2018   18:17:16   (   0.02, -75.42) (   0.62, -72.73)  306.53                80