Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2019   18:22:54   (   0.01, -75.20) (   0.25, -74.21)  113.27                80
 05/09/2019   06:44:42   (  -0.01, -75.19) (   0.95, -79.48)  488.43                80
 05/10/2019   06:23:18   (  -0.01, -75.19) (  -0.04, -74.94)   27.50                80
 05/12/2019   18:26:32   (   0.00, -75.19) (  -0.09, -75.73)   61.07                80
 05/13/2019   18:10:27   (   0.00, -75.19) (   0.90, -71.20)  455.50                80
 05/15/2019   06:32:15   (  -0.00, -75.20) (   0.30, -76.46)  144.80                80
 05/16/2019   06:10:52   (  -0.00, -75.20) (  -0.75, -71.94)  372.04                80
 05/17/2019   18:32:49   (   0.00, -75.22) (  -0.42, -77.25)  231.25                80
 05/18/2019   18:16:45   (   0.01, -75.23) (   0.57, -72.72)  286.00                80
 05/20/2019   06:38:33   (  -0.01, -75.24) (   0.63, -77.98)  313.23                80