Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 10 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/11/2018   18:23:32   (   0.00, -75.19) (   0.22, -74.21)  112.30                80
 10/13/2018   06:42:39   (  -0.01, -75.20) (   0.98, -79.48)  487.71                80
 10/14/2018   06:26:35   (  -0.01, -75.21) (  -0.05, -74.95)   28.93                80
 10/16/2018   18:29:47   (   0.02, -75.22) (  -0.09, -75.74)   58.91                80
 10/17/2018   18:08:22   (   0.02, -75.22) (   0.95, -71.21)  458.20                80
 10/19/2018   06:32:49   (  -0.02, -75.25) (   0.25, -76.48)  140.47                80
 10/20/2018   06:11:25   (  -0.03, -75.26) (  -0.79, -71.95)  377.03                80
 10/21/2018   18:36:00   (   0.03, -75.27) (  -0.44, -77.25)  226.11                80
 10/22/2018   18:14:36   (   0.03, -75.29) (   0.60, -72.73)  291.76                80
 10/24/2018   06:39:03   (  -0.03, -75.32) (   0.59, -78.00)  305.85                80