Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 12 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2018   18:20:46   (  -0.00, -75.19) (   0.21, -74.31)  100.91                80
 01/01/2019   06:45:13   (   0.01, -75.19) (   0.97, -79.58)  499.36                80
 01/02/2019   06:23:48   (   0.01, -75.20) (  -0.00, -75.04)   17.67                80
 01/04/2019   18:29:40   (  -0.01, -75.22) (  -0.12, -75.82)   68.31                80
 01/05/2019   18:08:14   (  -0.01, -75.23) (   0.86, -71.28)  449.06                80
 01/07/2019   06:32:42   (   0.01, -75.24) (   0.33, -76.55)  150.10                80
 01/08/2019   06:11:17   (   0.01, -75.25) (  -0.71, -72.02)  367.47                80
 01/09/2019   18:35:53   (  -0.01, -75.28) (  -0.45, -77.33)  234.22                80
 01/10/2019   18:14:28   (  -0.00, -75.29) (   0.53, -72.80)  283.87                80
 01/12/2019   06:38:56   (   0.01, -75.32) (   0.60, -78.08)  313.89                80