Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/21/2018   06:32:00   (  -0.01, -75.21) (   0.28, -76.40)  137.03                80
 02/22/2018   06:10:35   (  -0.01, -75.22) (  -0.73, -71.87)  381.10                80
 02/23/2018   18:32:31   (   0.01, -75.25) (  -0.39, -77.18)  219.11                80
 02/24/2018   18:16:25   (   0.02, -75.27) (   0.62, -72.65)  299.27                80
 02/26/2018   06:38:12   (  -0.02, -75.28) (   0.56, -77.91)  299.63                80
 02/27/2018   06:16:46   (  -0.02, -75.30) (  -0.46, -73.38)  218.85                80
 02/28/2018   18:38:41   (   0.03, -75.34) (  -0.72, -78.68)  380.74                80
 03/01/2018   18:22:36   (   0.03, -75.36) (   0.29, -74.14)  138.48                80
 03/03/2018   06:44:22   (  -0.03, -75.39) (   0.88, -79.41)  458.50                80
 03/04/2018   06:22:57   (  -0.03, -75.41) (  -0.13, -74.87)   61.09                80