Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 2 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)
 02/13/2018   18:22:49   (   0.00, -75.22) (   0.26, -74.19)  118.33                80
 02/15/2018   06:44:35   (  -0.01, -75.21) (   0.94, -79.45)  483.15                80
 02/16/2018   06:23:09   (  -0.01, -75.22) (  -0.07, -74.91)   34.36                80
 02/18/2018   18:26:19   (   0.01, -75.26) (  -0.10, -75.68)   47.61                80
 02/19/2018   18:10:14   (   0.01, -75.28) (   0.91, -71.14)  470.59                80
 02/21/2018   06:32:01   (  -0.01, -75.28) (   0.22, -76.42)  129.67                80
 02/22/2018   06:10:36   (  -0.01, -75.29) (  -0.79, -71.88)  388.49                80
 02/23/2018   18:32:31   (   0.01, -75.33) (  -0.39, -77.19)  211.04                80
 02/24/2018   18:16:26   (   0.01, -75.35) (   0.63, -72.65)  307.35                80
 02/26/2018   06:38:12   (  -0.02, -75.35) (   0.56, -77.91)  292.26                80