Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 7 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/16/2018   20:33:13   (   0.21,-104.50) (  -0.38,-107.27)  314.84                80
 07/17/2018   20:17:07   (   0.20,-104.51) (   0.60,-102.73)  202.88                80
 07/19/2018   08:36:14   (  -0.23,-104.36) (   0.57,-107.99)  413.62                80
 07/20/2018   08:20:09   (  -0.21,-104.37) (  -0.41,-103.45)  104.07                80
 07/21/2018   20:39:26   (   0.24,-104.53) (  -0.71,-108.77)  482.84                80
 07/22/2018   20:23:21   (   0.23,-104.54) (   0.28,-104.23)   35.09                80
 07/25/2018   08:23:43   (  -0.25,-104.41) (  -0.10,-104.96)   63.58                80
 07/26/2018   08:07:38   (  -0.24,-104.41) (  -1.14,-100.43)  454.13                80
 07/27/2018   20:26:56   (   0.27,-104.58) (   0.03,-105.75)  132.87                80
 07/28/2018   20:10:50   (   0.26,-104.59) (   1.01,-101.21)  385.08                80