Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/04/2018   18:39:03   (   0.02, -75.21) (  -0.75, -78.71)  398.54                80
 06/05/2018   18:22:58   (   0.02, -75.23) (   0.27, -74.19)  119.27                80
 06/07/2018   06:44:45   (  -0.01, -75.24) (   0.93, -79.45)  479.14                80
 06/08/2018   06:23:21   (  -0.01, -75.26) (  -0.10, -74.92)   38.77                80
 06/10/2018   18:26:33   (   0.01, -75.29) (  -0.05, -75.69)   44.79                80
 06/11/2018   18:10:27   (   0.01, -75.31) (   0.92, -71.15)  473.59                80
 06/13/2018   06:32:16   (  -0.01, -75.33) (   0.22, -76.43)  124.11                80
 06/14/2018   06:10:51   (  -0.01, -75.35) (  -0.81, -71.90)  394.10                80
 06/15/2018   18:32:46   (   0.01, -75.38) (  -0.42, -77.19)  207.27                80
 06/16/2018   18:16:42   (   0.00, -75.39) (   0.61, -72.66)  311.44                80