Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2018   18:22:58   (  -0.00, -75.21) (   0.22, -74.19)  115.99                80
 05/22/2018   06:44:46   (  -0.00, -75.22) (   0.94, -79.46)  482.98                80
 05/23/2018   06:23:21   (  -0.00, -75.23) (  -0.08, -74.93)   34.46                80
 05/25/2018   18:26:33   (   0.00, -75.26) (  -0.07, -75.71)   50.28                80
 05/26/2018   18:10:29   (   0.01, -75.28) (   0.95, -71.18)  467.92                80
 05/28/2018   06:32:16   (  -0.01, -75.31) (   0.27, -76.44)  129.43                80
 05/29/2018   06:10:52   (  -0.01, -75.32) (  -0.76, -71.91)  388.89                80
 05/30/2018   18:32:48   (   0.02, -75.35) (  -0.41, -77.21)  212.74                80
 05/31/2018   18:16:43   (   0.02, -75.37) (   0.61, -72.68)  305.99                80
 06/02/2018   06:38:32   (  -0.03, -75.41) (   0.54, -77.96)  290.30                80