Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2018   06:10:48   (  -0.01, -75.20) (  -0.77, -71.86)  380.72                80
 07/01/2018   18:32:44   (   0.02, -75.21) (  -0.41, -77.16)  222.67                80
 07/02/2018   18:16:40   (   0.02, -75.21) (   0.62, -72.63)  294.66                80
 07/04/2018   06:38:27   (  -0.02, -75.22) (   0.55, -77.90)  304.24                80
 07/05/2018   06:17:01   (  -0.02, -75.23) (  -0.42, -73.36)  213.34                80
 07/06/2018   18:38:58   (   0.02, -75.25) (  -0.76, -78.66)  389.23                80
 07/07/2018   18:22:53   (   0.02, -75.26) (   0.28, -74.13)  128.67                80
 07/09/2018   06:44:41   (  -0.03, -75.28) (   0.89, -79.40)  469.36                80
 07/10/2018   06:23:16   (  -0.03, -75.29) (  -0.14, -74.87)   48.49                80
 07/12/2018   18:26:27   (   0.04, -75.32) (  -0.05, -75.63)   36.08                80
 07/13/2018   18:10:22   (   0.04, -75.34) (   0.98, -71.11)  482.23                80