Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 15.  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   (  -0.00, -75.20) (  -0.10, -75.73)   59.77                80
 09/18/2019   18:10:58   (  -0.00, -75.21) (   0.92, -71.20)  457.32                80
 09/20/2019   06:32:45   (   0.00, -75.21) (   0.28, -76.46)  142.56                80
 09/21/2019   06:11:21   (   0.00, -75.22) (  -0.74, -71.93)  374.46                80
 09/22/2019   18:33:17   (  -0.00, -75.23) (  -0.43, -77.24)  228.45                80
 09/23/2019   18:17:11   (  -0.00, -75.23) (   0.54, -72.69)  288.86                80
 09/25/2019   06:39:00   (   0.01, -75.24) (   0.61, -77.97)  310.38                80
 09/26/2019   06:17:35   (   0.01, -75.25) (  -0.42, -73.44)  207.11                80
 09/27/2019   18:39:30   (  -0.01, -75.27) (  -0.81, -78.73)  394.96                80
 09/28/2019   18:23:26   (  -0.01, -75.28) (   0.22, -74.20)  123.09                80