Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 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)
 06/18/2018   06:38:29   (  -0.01, -75.22) (   0.62, -77.91)  307.32                80
 06/19/2018   06:17:04   (  -0.01, -75.24) (  -0.41, -73.38)  210.58                80
 06/20/2018   18:39:01   (   0.01, -75.26) (  -0.77, -78.69)  391.17                80
 06/21/2018   18:22:56   (   0.01, -75.28) (   0.26, -74.16)  127.30                80
 06/23/2018   06:44:43   (  -0.02, -75.31) (   0.93, -79.42)  469.70                80
 06/24/2018   06:23:19   (  -0.02, -75.33) (  -0.10, -74.89)   49.06                80
 06/26/2018   18:26:31   (   0.03, -75.38) (  -0.04, -75.67)   32.67                80
 06/27/2018   18:10:26   (   0.03, -75.41) (   0.99, -71.14)  486.52                80
 06/29/2018   06:32:14   (  -0.03, -75.45) (   0.20, -76.41)  109.41                80
 06/30/2018   06:10:49   (  -0.03, -75.48) (  -0.84, -71.88)  410.10                80