Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2018   06:44:46   (   0.03, -75.18) (   0.98, -79.48)  490.48                80
 01/31/2018   06:23:21   (   0.03, -75.18) (  -0.02, -74.95)   27.03                80
 02/02/2018   18:26:31   (  -0.04, -75.23) (  -0.15, -75.71)   55.75                80
 02/03/2018   18:10:25   (  -0.04, -75.24) (   0.85, -71.18)  462.65                80
 02/05/2018   06:32:13   (   0.04, -75.26) (   0.29, -76.45)  135.74                80
 02/06/2018   06:10:47   (   0.04, -75.28) (  -0.72, -71.92)  382.93                80
 02/07/2018   18:32:42   (  -0.04, -75.32) (  -0.46, -77.22)  216.47                80
 02/08/2018   18:16:37   (  -0.04, -75.34) (   0.54, -72.68)  302.74                80
 02/10/2018   06:38:24   (   0.05, -75.37) (   0.60, -77.95)  294.28                80
 02/11/2018   06:16:59   (   0.05, -75.39) (  -0.41, -73.42)  225.03                80