Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/01/2018   20:33:26   (   0.30,-104.60) (  -0.28,-107.32)  308.85                80
 08/02/2018   20:17:21   (   0.29,-104.61) (   0.70,-102.78)  208.62                80
 08/04/2018   08:36:29   (  -0.31,-104.47) (   0.50,-108.05)  408.36                80
 08/05/2018   08:20:26   (  -0.30,-104.47) (  -0.54,-103.53)  108.49                80
 08/06/2018   20:39:44   (   0.33,-104.63) (  -0.60,-108.84)  480.06                80
 08/07/2018   20:23:40   (   0.32,-104.63) (   0.38,-104.31)   36.98                80
 08/10/2018   08:26:45   (  -0.34,-104.49) (  -0.22,-105.05)   63.27                80
 08/11/2018   08:08:00   (  -0.33,-104.49) (  -1.21,-100.51)  453.25                80
 08/12/2018   20:27:18   (   0.35,-104.65) (   0.07,-105.83)  135.57                80
 08/13/2018   20:11:15   (   0.34,-104.65) (   1.12,-101.31)  381.75                80