Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/16/2018   06:17:02   (   0.01, -75.19) (  -0.40, -73.42)  202.19                80
 04/17/2018   18:38:58   (  -0.02, -75.19) (  -0.82, -78.72)  402.71                80
 04/18/2018   18:22:53   (  -0.00, -75.19) (   0.19, -74.19)  112.79                80
 04/20/2018   06:44:42   (  -0.00, -75.18) (   0.97, -79.46)  488.85                80
 04/21/2018   06:23:17   (  -0.00, -75.17) (  -0.04, -74.93)   27.20                80
 04/23/2018   18:26:30   (  -0.00, -75.17) (  -0.10, -75.71)   61.28                80
 04/24/2018   18:10:26   (  -0.00, -75.17) (   0.91, -71.18)  455.45                80
 04/26/2018   06:32:14   (  -0.00, -75.18) (   0.26, -76.45)  144.74                80
 04/27/2018   06:10:49   (  -0.00, -75.18) (  -0.76, -71.92)  372.30                80
 04/28/2018   18:32:46   (   0.01, -75.20) (  -0.44, -77.22)  231.01                80
 04/29/2018   18:16:41   (   0.01, -75.21) (   0.58, -72.69)  286.50                80