Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 7 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2018   08:14:06   (  -0.27,-104.43) (  -0.82,-101.99)  278.31                80
 08/01/2018   20:33:25   (   0.30,-104.60) (  -0.33,-107.31)  309.13                80
 08/02/2018   20:17:21   (   0.29,-104.61) (   0.71,-102.78)  208.30                80
 08/04/2018   08:36:30   (  -0.31,-104.47) (   0.49,-108.05)  408.58                80
 08/05/2018   08:20:25   (  -0.30,-104.47) (  -0.49,-103.51)  108.21                80
 08/06/2018   20:39:44   (   0.33,-104.62) (  -0.59,-108.84)  480.58                80
 08/07/2018   20:23:40   (   0.32,-104.63) (   0.39,-104.31)   36.38                80
 08/10/2018   08:26:45   (  -0.34,-104.49) (  -0.23,-105.05)   63.80                80
 08/11/2018   08:08:00   (  -0.33,-104.49) (  -1.21,-100.52)  452.68                80
 08/12/2018   20:27:19   (   0.35,-104.64) (   0.08,-105.83)  136.38                80