Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 9 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/24/2018   18:39:38   (   0.02, -75.23) (  -0.74, -78.72)  397.56                80
 09/25/2018   18:23:33   (   0.01, -75.24) (   0.25, -74.19)  120.06                80
 09/27/2018   06:45:21   (  -0.01, -75.27) (   0.94, -79.45)  477.74                80
 09/28/2018   06:26:38   (  -0.01, -75.28) (  -0.11, -74.93)   40.10                80
 09/30/2018   18:27:10   (   0.01, -75.30) (  -0.10, -75.70)   45.38                80
 10/01/2018   18:11:06   (   0.01, -75.32) (   0.96, -71.18)  472.56                80
 10/03/2018   06:32:55   (  -0.01, -75.35) (   0.24, -76.44)  124.90                80
 10/04/2018   06:11:30   (  -0.01, -75.36) (  -0.76, -71.91)  393.15                80
 10/05/2018   18:33:27   (   0.02, -75.38) (  -0.39, -77.22)  209.33                80
 10/06/2018   18:17:23   (   0.02, -75.40) (   0.61, -72.69)  309.26                80