Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 9 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)
 09/08/2018   18:39:29   (   0.01, -75.20) (  -0.78, -78.71)  400.12                80
 09/09/2018   18:23:25   (   0.00, -75.20) (   0.21, -74.17)  116.45                80
 09/11/2018   06:45:14   (  -0.00, -75.20) (   0.93, -79.45)  483.88                80
 09/12/2018   06:23:50   (  -0.00, -75.21) (  -0.06, -74.92)   33.07                80
 09/14/2018   18:27:03   (   0.00, -75.23) (  -0.11, -75.69)   52.58                80
 09/15/2018   18:10:59   (   0.00, -75.24) (   0.94, -71.17)  464.84                80
 09/17/2018   06:32:47   (  -0.01, -75.26) (   0.26, -76.44)  134.33                80
 09/18/2018   06:11:23   (  -0.01, -75.27) (  -0.73, -71.90)  383.37                80
 09/19/2018   18:33:20   (   0.01, -75.29) (  -0.42, -77.21)  218.41                80
 09/20/2018   18:17:16   (   0.01, -75.31) (   0.57, -72.68)  299.73                80