Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2018   18:22:59   (  -0.00, -75.20) (   0.19, -74.22)  111.35                80
 01/30/2018   06:44:47   (  -0.00, -75.19) (   0.96, -79.49)  489.82                80
 01/31/2018   06:23:21   (  -0.01, -75.19) (  -0.04, -74.95)   27.17                80
 02/02/2018   18:26:31   (   0.01, -75.22) (  -0.13, -75.72)   57.25                80
 02/03/2018   18:10:27   (   0.01, -75.23) (   0.93, -71.20)  460.78                80
 02/05/2018   06:32:13   (  -0.01, -75.24) (   0.27, -76.46)  138.32                80
 02/06/2018   06:10:47   (  -0.01, -75.26) (  -0.74, -71.92)  379.93                80
 02/07/2018   18:32:43   (   0.01, -75.29) (  -0.44, -77.22)  220.49                80
 02/08/2018   18:16:38   (   0.01, -75.31) (   0.62, -72.70)  298.24                80
 02/10/2018   06:38:25   (  -0.02, -75.33) (   0.58, -77.96)  299.65                80