Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2018   08:20:26   (  -0.30,-104.47) (  -0.53,-103.52)  108.86                80
 08/06/2018   20:39:44   (   0.33,-104.64) (  -0.62,-108.84)  479.01                80
 08/07/2018   20:23:41   (   0.32,-104.64) (   0.42,-104.31)   38.28                80
 08/10/2018   08:24:04   (  -0.34,-104.50) (  -0.21,-105.05)   62.11                80
 08/11/2018   08:08:01   (  -0.33,-104.50) (  -1.25,-100.52)  454.57                80
 08/12/2018   20:27:19   (   0.35,-104.66) (   0.11,-105.84)  133.63                80
 08/13/2018   20:11:15   (   0.34,-104.67) (   1.10,-101.30)  383.84                80
 08/15/2018   08:33:03   (  -0.36,-104.54) (   0.11,-106.57)  231.83                80
 08/16/2018   08:11:40   (  -0.35,-104.54) (  -0.94,-102.05)  285.17                80
 08/17/2018   20:33:38   (   0.37,-104.70) (  -0.19,-107.37)  303.61                80