Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2019   06:31:55   (   0.01, -75.20) (   0.30, -76.39)  136.02                80
 04/14/2019   06:10:31   (   0.02, -75.20) (  -0.74, -71.87)  380.21                80
 04/15/2019   18:32:29   (  -0.02, -75.21) (  -0.46, -77.17)  224.25                80
 04/16/2019   18:16:25   (  -0.02, -75.21) (   0.58, -72.65)  292.55                80
 04/18/2019   06:38:14   (   0.02, -75.22) (   0.62, -77.92)  307.25                80
 04/19/2019   06:16:50   (  -0.02, -75.23) (  -0.42, -73.40)  208.85                80
 04/20/2019   18:38:48   (   0.02, -75.25) (  -0.72, -78.71)  394.56                80
 04/21/2019   18:22:44   (   0.02, -75.26) (   0.26, -74.18)  122.95                80
 04/23/2019   06:44:32   (  -0.02, -75.28) (   0.94, -79.45)  475.63                80
 04/24/2019   06:23:09   (  -0.02, -75.29) (  -0.10, -74.92)   42.08                80
 04/26/2019   18:26:23   (   0.02, -75.33) (  -0.05, -75.71)   42.36                80