Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 1 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/21/2019   18:08:10   (  -0.02, -75.20) (   0.88, -71.28)  447.23                80
 01/23/2019   06:32:37   (   0.03, -75.20) (   0.31, -76.55)  152.51                80
 01/24/2019   06:11:11   (   0.03, -75.21) (  -0.67, -72.01)  364.30                80
 01/25/2019   18:35:48   (  -0.03, -75.21) (  -0.47, -77.32)  239.25                80
 01/26/2019   18:14:22   (  -0.03, -75.22) (   0.51, -72.78)  278.19                80
 01/28/2019   06:38:50   (   0.03, -75.24) (   0.67, -78.05)  319.89                80
 01/29/2019   06:17:25   (   0.03, -75.25) (  -0.37, -73.52)  197.77                80
 01/30/2019   18:42:00   (  -0.04, -75.27) (  -0.83, -78.82)  404.73                80
 01/31/2019   18:20:35   (  -0.04, -75.28) (   0.16, -74.28)  113.40                80
 02/02/2019   06:45:03   (   0.05, -75.31) (   0.97, -79.56)  483.54                80
 02/03/2019   06:23:38   (   0.04, -75.33) (  -0.01, -75.02)   34.77                80