Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 9 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/05/2018   08:39:18   (   0.37,-104.25) (   1.19,-107.93)  420.19                80
 09/06/2018   08:17:53   (   0.37,-104.22) (   0.20,-103.40)   93.68                80
 09/08/2018   20:23:47   (  -0.36,-104.32) (  -0.32,-104.18)   15.28                80
 09/11/2018   08:26:51   (   0.36,-104.18) (   0.53,-104.92)   84.48                80
 09/12/2018   08:05:26   (   0.36,-104.16) (  -0.46,-100.38)  429.96                80
 09/13/2018   20:27:25   (  -0.35,-104.25) (  -0.65,-105.70)  164.48                80
 09/14/2018   20:11:20   (  -0.36,-104.25) (   0.35,-101.17)  351.53                80
 09/16/2018   08:33:09   (   0.34,-104.14) (   0.86,-106.43)  261.39                80
 09/17/2018   08:11:44   (   0.35,-104.12) (  -0.13,-101.90)  253.00                80
 09/18/2018   20:33:41   (  -0.33,-104.19) (  -1.02,-107.21)  344.29                80