Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 3 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2018   06:32:05   (   0.02, -75.20) (   0.26, -76.43)  139.48                80
 03/26/2018   06:10:40   (   0.02, -75.20) (  -0.74, -71.89)  377.60                80
 03/27/2018   18:32:38   (  -0.02, -75.22) (  -0.44, -77.20)  225.12                80
 03/28/2018   18:16:33   (  -0.02, -75.24) (   0.56, -72.67)  292.63                80
 03/30/2018   06:38:22   (   0.02, -75.26) (   0.60, -77.94)  305.34                80
 03/31/2018   06:16:57   (   0.02, -75.28) (  -0.40, -73.41)  212.67                80
 04/01/2018   18:38:54   (  -0.02, -75.31) (  -0.77, -78.72)  388.85                80
 04/02/2018   18:22:50   (  -0.02, -75.33) (   0.23, -74.19)  129.76                80
 04/04/2018   06:44:38   (   0.02, -75.37) (   0.93, -79.46)  466.73                80
 04/05/2018   06:23:14   (   0.02, -75.39) (  -0.07, -74.93)   51.96                80