Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/18/2018   06:35:49   (  -0.02, -75.20) (   0.61, -77.92)  310.08                80
 06/19/2018   06:19:45   (   0.01, -75.20) (  -0.42, -73.39)  206.98                80
 06/20/2018   18:39:00   (  -0.02, -75.20) (  -0.82, -78.68)  396.87                80
 06/21/2018   18:22:55   (  -0.02, -75.20) (   0.21, -74.15)  120.28                80
 06/23/2018   06:42:03   (   0.02, -75.22) (   0.97, -79.41)  478.72                80
 06/24/2018   06:25:58   (  -0.00, -75.22) (  -0.06, -74.88)   38.32                80
 06/26/2018   18:26:30   (   0.02, -75.25) (  -0.09, -75.66)   47.55                80
 06/27/2018   18:10:26   (   0.02, -75.26) (   0.94, -71.13)  470.36                80
 06/29/2018   06:29:33   (  -0.01, -75.28) (   0.24, -76.40)  127.34                80
 06/30/2018   06:13:28   (  -0.01, -75.29) (  -0.79, -71.87)  390.94                80
 07/01/2018   18:32:45   (   0.00, -75.32) (  -0.38, -77.17)  210.80                80