Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2018   18:39:02   (  -0.00, -75.20) (  -0.80, -78.72)  401.13                80
 05/20/2018   18:22:58   (   0.00, -75.21) (   0.23, -74.19)  115.80                80
 05/22/2018   06:44:46   (  -0.00, -75.22) (   0.93, -79.46)  483.33                80
 05/23/2018   06:23:22   (  -0.00, -75.23) (  -0.09, -74.93)   34.10                80
 05/25/2018   18:26:32   (   0.00, -75.26) (  -0.12, -75.70)   50.87                80
 05/26/2018   18:10:28   (   0.01, -75.27) (   0.90, -71.17)  467.30                80
 05/28/2018   06:32:16   (  -0.01, -75.30) (   0.26, -76.44)  130.20                80
 05/29/2018   06:10:52   (  -0.01, -75.32) (  -0.77, -71.91)  388.03                80
 05/30/2018   18:32:48   (   0.02, -75.34) (  -0.40, -77.21)  213.64                80
 05/31/2018   18:16:44   (   0.02, -75.36) (   0.63, -72.69)  305.01                80