Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/13/2018   06:32:15   (  -0.02, -75.21) (   0.27, -76.41)  137.97                80
 06/14/2018   06:10:50   (  -0.02, -75.21) (  -0.76, -71.89)  379.11                80
 06/15/2018   18:32:47   (   0.03, -75.23) (  -0.42, -77.19)  223.74                80
 06/16/2018   18:16:42   (   0.03, -75.23) (   0.61, -72.66)  293.71                80
 06/18/2018   06:38:30   (  -0.02, -75.25) (   0.58, -77.92)  305.05                80
 06/19/2018   06:17:05   (  -0.02, -75.26) (  -0.45, -73.39)  212.86                80
 06/20/2018   18:39:01   (   0.02, -75.29) (  -0.73, -78.70)  388.62                80
 06/21/2018   18:22:57   (   0.02, -75.30) (   0.30, -74.17)  129.87                80
 06/23/2018   06:44:44   (  -0.02, -75.33) (   0.89, -79.43)  467.36                80
 06/24/2018   06:23:20   (  -0.03, -75.35) (  -0.14, -74.90)   51.36                80
 06/26/2018   18:29:12   (   0.03, -75.41) (  -0.00, -75.68)   30.29                80