Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2018   18:16:41   (  -0.00, -75.21) (   0.55, -72.69)  286.84                80
 05/01/2018   06:38:29   (   0.00, -75.23) (   0.62, -77.96)  311.31                80
 05/02/2018   06:17:05   (  -0.00, -75.24) (  -0.40, -73.43)  206.58                80
 05/03/2018   18:39:01   (   0.00, -75.26) (  -0.80, -78.73)  395.32                80
 05/04/2018   18:22:56   (   0.00, -75.28) (   0.22, -74.20)  123.15                80
 05/06/2018   06:44:45   (  -0.00, -75.32) (   0.95, -79.47)  473.81                80
 05/07/2018   06:23:20   (  -0.00, -75.34) (  -0.06, -74.94)   44.83                80
 05/09/2018   18:26:33   (   0.00, -75.39) (  -0.05, -75.72)   37.42                80
 05/10/2018   18:10:29   (   0.00, -75.42) (   0.97, -71.19)  481.91                80
 05/12/2018   06:32:17   (  -0.00, -75.46) (   0.21, -76.46)  113.69                80