Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2019   18:10:27   (  -0.01, -75.19) (   0.90, -71.19)  455.70                80
 05/15/2019   06:32:15   (   0.00, -75.19) (   0.30, -76.46)  144.86                80
 05/16/2019   06:10:52   (   0.00, -75.20) (  -0.75, -71.94)  371.78                80
 05/17/2019   18:32:48   (  -0.00, -75.20) (  -0.48, -77.24)  232.07                80
 05/18/2019   18:16:45   (  -0.00, -75.21) (   0.57, -72.71)  284.98                80
 05/20/2019   06:38:33   (   0.00, -75.23) (   0.63, -77.98)  314.42                80
 05/21/2019   06:17:09   (  -0.00, -75.24) (  -0.42, -73.46)  202.73                80
 05/22/2019   18:39:06   (   0.01, -75.25) (  -0.81, -78.76)  400.45                80
 05/23/2019   18:23:02   (   0.01, -75.26) (   0.24, -74.24)  117.15                80
 05/25/2019   06:44:51   (  -0.02, -75.29) (   0.96, -79.50)  481.00                80
 05/26/2019   06:23:27   (  -0.02, -75.31) (  -0.10, -74.98)   36.96                80