Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 3 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2019   06:44:37   (  -0.01, -75.19) (   0.97, -79.46)  487.40                80
 03/23/2019   06:23:12   (  -0.02, -75.20) (  -0.09, -74.94)   29.54                80
 03/25/2019   18:26:22   (   0.02, -75.22) (  -0.11, -75.70)   55.33                80
 03/26/2019   18:10:18   (   0.03, -75.23) (   0.95, -71.18)  462.37                80
 03/28/2019   06:32:04   (  -0.02, -75.24) (   0.24, -76.44)  137.10                80
 03/29/2019   06:10:39   (  -0.02, -75.25) (  -0.76, -71.90)  380.76                80
 03/30/2019   18:32:34   (   0.02, -75.28) (  -0.43, -77.20)  220.06                80
 03/31/2019   18:16:28   (   0.01, -75.29) (   0.57, -72.67)  298.49                80
 04/02/2019   06:38:16   (  -0.00, -75.31) (   0.56, -77.94)  299.39                80
 04/03/2019   06:16:50   (  -0.00, -75.33) (  -0.44, -73.40)  219.27                80
 04/04/2019   18:38:46   (   0.00, -75.36) (  -0.75, -78.70)  380.64                80