Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2019   18:39:32   (   0.01, -75.20) (  -0.80, -78.76)  405.81                80
 09/12/2019   18:23:27   (   0.01, -75.20) (   0.23, -74.23)  111.36                80
 09/14/2019   06:45:15   (  -0.01, -75.21) (   0.97, -79.49)  487.71                80
 09/15/2019   06:23:50   (  -0.00, -75.22) (  -0.05, -74.96)   29.76                80
 09/17/2019   18:27:02   (   0.00, -75.25) (  -0.11, -75.73)   55.11                80
 09/18/2019   18:10:58   (   0.00, -75.26) (   0.92, -71.20)  462.76                80
 09/20/2019   06:32:45   (  -0.00, -75.28) (   0.29, -76.46)  135.46                80
 09/21/2019   06:11:20   (  -0.00, -75.29) (  -0.74, -71.93)  382.38                80
 09/22/2019   18:33:17   (   0.00, -75.31) (  -0.43, -77.24)  219.91                80
 09/23/2019   18:17:12   (   0.00, -75.32) (   0.59, -72.71)  298.14                80