Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2018   20:26:58   (   0.18,-104.48) (  -0.10,-105.76)  145.09                80
 07/12/2018   20:10:53   (   0.16,-104.48) (   0.88,-101.22)  372.13                80
 07/14/2018   08:30:00   (  -0.19,-104.33) (   0.28,-106.48)  245.06                80
 07/15/2018   08:13:55   (  -0.18,-104.34) (  -0.69,-101.94)  272.29                80
 07/16/2018   20:33:12   (   0.21,-104.50) (  -0.43,-107.26)  315.01                80
 07/17/2018   20:17:07   (   0.19,-104.51) (   0.61,-102.73)  202.67                80
 07/19/2018   08:36:14   (  -0.22,-104.36) (   0.61,-107.99)  413.78                80
 07/20/2018   08:20:09   (  -0.21,-104.37) (  -0.43,-103.46)  103.86                80
 07/21/2018   20:39:27   (   0.24,-104.53) (  -0.69,-108.77)  483.26                80
 07/22/2018   20:23:21   (   0.23,-104.54) (   0.29,-104.23)   34.53                80