Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2018   06:32:09   (  -0.01, -75.20) (   0.23, -76.36)  131.94                80
 07/16/2018   06:13:24   (  -0.01, -75.20) (  -0.75, -71.82)  385.33                80
 07/17/2018   18:32:40   (   0.01, -75.22) (  -0.43, -77.12)  217.25                80
 07/18/2018   18:16:35   (   0.01, -75.23) (   0.61, -72.60)  300.58                80
 07/20/2018   06:35:43   (  -0.01, -75.25) (   0.55, -77.86)  297.73                80
 07/21/2018   06:19:37   (  -0.01, -75.26) (  -0.43, -73.32)  220.44                80
 07/22/2018   18:38:54   (   0.01, -75.29) (  -0.75, -78.63)  381.04                80
 07/23/2018   18:22:49   (   0.01, -75.30) (   0.29, -74.10)  137.43                80
 07/25/2018   06:41:56   (  -0.02, -75.33) (   0.87, -79.37)  459.94                80
 07/26/2018   06:23:11   (  -0.01, -75.35) (  -0.11, -74.83)   58.87                80
 07/28/2018   18:26:23   (   0.01, -75.40) (  -0.02, -75.60)   22.51                80