Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2019   18:26:31   (  -0.01, -75.19) (  -0.10, -75.73)   60.23                80
 05/13/2019   18:10:27   (  -0.01, -75.20) (   0.89, -71.19)  456.43                80
 05/15/2019   06:32:15   (   0.00, -75.20) (   0.31, -76.46)  143.58                80
 05/16/2019   06:10:52   (   0.01, -75.21) (  -0.74, -71.94)  373.43                80
 05/17/2019   18:32:49   (  -0.00, -75.23) (  -0.43, -77.25)  229.83                80
 05/18/2019   18:16:44   (  -0.00, -75.24) (   0.56, -72.71)  287.59                80
 05/20/2019   06:38:33   (   0.00, -75.26) (   0.64, -77.98)  311.25                80
 05/21/2019   06:17:09   (   0.00, -75.27) (  -0.41, -73.46)  206.29                80
 05/22/2019   18:39:07   (   0.00, -75.29) (  -0.75, -78.77)  396.24                80
 05/23/2019   18:23:02   (   0.01, -75.31) (   0.24, -74.24)  121.73                80
 05/25/2019   06:44:51   (  -0.01, -75.34) (   0.90, -79.52)  475.90                80