Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/17/2018   06:38:31   (   0.00, -75.20) (   0.62, -77.95)  313.78                80
 05/18/2018   06:17:06   (  -0.00, -75.20) (  -0.40, -73.42)  202.84                80
 05/19/2018   18:39:02   (   0.00, -75.21) (  -0.78, -78.72)  400.93                80
 05/20/2018   18:22:58   (   0.01, -75.21) (   0.24, -74.19)  116.11                80
 05/22/2018   06:44:46   (  -0.01, -75.22) (   0.92, -79.47)  483.01                80
 05/23/2018   06:23:22   (  -0.01, -75.23) (  -0.10, -74.94)   34.55                80
 05/25/2018   18:26:33   (   0.01, -75.27) (  -0.12, -75.70)   49.95                80
 05/26/2018   18:10:28   (   0.01, -75.28) (   0.91, -71.17)  468.34                80
 05/28/2018   06:32:16   (  -0.02, -75.31) (   0.25, -76.44)  129.19                80
 05/29/2018   06:10:52   (  -0.02, -75.33) (  -0.77, -71.91)  389.17                80
 05/30/2018   18:32:48   (   0.03, -75.36) (  -0.40, -77.22)  212.12                80