Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 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)
 07/12/2018   18:29:07   (   0.02, -75.21) (  -0.07, -75.63)   47.72                80
 07/13/2018   18:07:42   (   0.02, -75.22) (   0.97, -71.10)  469.51                80
 07/15/2018   06:32:09   (  -0.02, -75.22) (   0.25, -76.36)  129.69                80
 07/16/2018   06:10:44   (  -0.02, -75.23) (  -0.78, -71.83)  388.03                80
 07/17/2018   18:35:20   (   0.02, -75.26) (  -0.40, -77.13)  213.63                80
 07/18/2018   18:13:55   (   0.01, -75.27) (   0.59, -72.59)  304.63                80
 07/20/2018   06:38:22   (  -0.01, -75.29) (   0.58, -77.86)  293.07                80
 07/21/2018   06:16:58   (  -0.01, -75.31) (  -0.46, -73.33)  225.49                80
 07/22/2018   18:41:34   (   0.01, -75.34) (  -0.72, -78.63)  375.06                80
 07/23/2018   18:20:10   (   0.02, -75.36) (   0.32, -74.11)  143.85                80