Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2018   06:44:45   (  -0.01, -75.20) (   0.97, -79.46)  486.16                80
 05/23/2018   06:23:21   (  -0.02, -75.19) (  -0.05, -74.93)   30.19                80
 05/25/2018   18:26:33   (   0.02, -75.19) (  -0.10, -75.70)   57.83                80
 05/26/2018   18:10:28   (   0.02, -75.20) (   0.92, -71.17)  459.16                80
 05/28/2018   06:32:17   (  -0.02, -75.21) (   0.24, -76.44)  139.77                80
 05/29/2018   06:10:52   (  -0.02, -75.22) (  -0.78, -71.91)  377.45                80
 05/30/2018   18:32:47   (   0.02, -75.23) (  -0.45, -77.20)  226.12                80
 05/31/2018   18:16:43   (   0.02, -75.24) (   0.58, -72.67)  291.55                80
 06/02/2018   06:38:31   (  -0.02, -75.26) (   0.58, -77.95)  306.35                80
 06/03/2018   06:19:47   (  -0.02, -75.27) (  -0.44, -73.42)  211.56                80