Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 8 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/16/2018   08:11:39   (  -0.35,-104.55) (  -0.92,-102.04)  286.25                80
 08/17/2018   20:33:37   (   0.37,-104.71) (  -0.21,-107.36)  301.85                80
 08/18/2018   20:17:33   (   0.37,-104.72) (   0.77,-102.82)  215.86                80
 08/20/2018   08:39:22   (  -0.39,-104.60) (   0.37,-108.10)  398.80                80
 08/21/2018   08:17:58   (  -0.38,-104.60) (  -0.62,-103.57)  118.12                80
 08/22/2018   20:39:56   (   0.40,-104.75) (  -0.51,-108.89)  471.23                80
 08/23/2018   20:23:52   (   0.40,-104.76) (   0.48,-104.35)   46.51                80
 08/26/2018   08:26:57   (  -0.41,-104.66) (  -0.32,-105.09)   49.48                80
 08/27/2018   08:05:32   (  -0.40,-104.66) (  -1.31,-100.56)  467.56                80
 08/28/2018   20:27:30   (   0.41,-104.81) (   0.19,-105.88)  121.95                80