Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 2 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2018   18:10:14   (   0.01, -75.21) (   0.93, -71.15)  463.14                80
 02/21/2018   06:32:00   (  -0.01, -75.21) (   0.25, -76.41)  136.62                80
 02/22/2018   06:10:35   (  -0.01, -75.22) (  -0.76, -71.87)  381.37                80
 02/23/2018   18:32:30   (   0.01, -75.26) (  -0.42, -77.18)  218.97                80
 02/24/2018   18:16:25   (   0.02, -75.27) (   0.59, -72.64)  299.24                80
 02/26/2018   06:38:11   (  -0.02, -75.28) (   0.59, -77.90)  299.97                80
 02/27/2018   06:16:47   (  -0.02, -75.29) (  -0.48, -73.38)  218.41                80
 02/28/2018   18:38:42   (   0.03, -75.33) (  -0.70, -78.68)  381.36                80
 03/01/2018   18:22:36   (   0.03, -75.35) (   0.31, -74.15)  137.74                80
 03/03/2018   06:44:23   (  -0.03, -75.38) (   0.87, -79.41)  459.59                80
 03/04/2018   06:22:57   (  -0.03, -75.40) (  -0.15, -74.88)   59.84                80