Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/27/2018   18:39:05   (  -0.03, -75.20) (  -0.83, -78.75)  404.92                80
 01/28/2018   18:22:59   (  -0.03, -75.20) (   0.18, -74.21)  111.62                80
 01/30/2018   06:44:47   (   0.04, -75.18) (   0.97, -79.49)  489.82                80
 01/31/2018   06:23:21   (   0.04, -75.18) (  -0.03, -74.95)   26.96                80
 02/02/2018   18:26:31   (  -0.04, -75.20) (  -0.14, -75.72)   58.08                80
 02/03/2018   18:10:25   (  -0.04, -75.21) (   0.87, -71.18)  459.51                80
 02/05/2018   06:32:12   (   0.04, -75.22) (   0.33, -76.44)  140.03                80
 02/06/2018   06:10:46   (   0.04, -75.23) (  -0.67, -71.91)  377.83                80
 02/07/2018   18:32:42   (  -0.05, -75.26) (  -0.50, -77.21)  222.84                80
 02/08/2018   18:16:36   (  -0.05, -75.27) (   0.51, -72.67)  295.54                80