Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2018   20:17:21   (  -0.38,-104.62) (   0.07,-102.66)  222.67                80
 08/20/2018   08:39:08   (   0.39,-104.43) (   1.19,-107.92)  397.67                80
 08/21/2018   08:17:45   (   0.38,-104.41) (   0.14,-103.40)  116.14                80
 08/22/2018   20:39:42   (  -0.39,-104.55) (  -1.33,-108.70)  473.82                80
 08/23/2018   20:23:39   (  -0.38,-104.54) (  -0.28,-104.18)   41.32                80
 08/26/2018   08:26:43   (   0.38,-104.36) (   0.50,-104.91)   62.87                80
 08/27/2018   08:05:18   (   0.37,-104.34) (  -0.49,-100.37)  451.22                80
 08/28/2018   20:27:16   (  -0.38,-104.47) (  -0.63,-105.70)  139.41                80
 08/29/2018   20:11:12   (  -0.38,-104.46) (   0.36,-101.16)  376.07                80
 08/31/2018   08:33:00   (   0.38,-104.31) (   0.84,-106.43)  241.29                80