Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2019   18:27:02   (  -0.01, -75.20) (  -0.11, -75.73)   59.86                80
 09/18/2019   18:10:58   (  -0.00, -75.20) (   0.92, -71.20)  457.14                80
 09/20/2019   06:32:45   (   0.01, -75.21) (   0.29, -76.46)  143.00                80
 09/21/2019   06:11:20   (   0.00, -75.21) (  -0.74, -71.93)  373.95                80
 09/22/2019   18:33:17   (  -0.01, -75.22) (  -0.44, -77.23)  228.83                80
 09/23/2019   18:17:11   (  -0.01, -75.23) (   0.53, -72.69)  288.41                80
 09/25/2019   06:39:00   (   0.01, -75.24) (   0.61, -77.97)  311.11                80
 09/26/2019   06:17:35   (   0.01, -75.24) (  -0.41, -73.44)  206.30                80
 09/27/2019   18:39:30   (  -0.01, -75.26) (  -0.82, -78.73)  395.67                80
 09/28/2019   18:23:26   (  -0.01, -75.28) (   0.21, -74.20)  122.32                80
 09/30/2019   06:45:14   (   0.01, -75.30) (   0.93, -79.47)  475.78                80