Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 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)
 12/06/2018   08:11:50   (   0.04,-104.20) (  -0.43,-102.08)  241.34                80
 12/07/2018   20:33:46   (  -0.01,-104.02) (  -0.77,-107.39)  383.39                80
 12/08/2018   20:17:42   (  -0.02,-104.03) (   0.26,-102.86)  133.90                80
 12/10/2018   08:39:30   (   0.00,-104.22) (   0.87,-108.14)  445.99                80
 12/11/2018   08:18:05   (   0.02,-104.22) (  -0.10,-103.60)   70.16                80
 12/13/2018   20:21:16   (  -0.01,-104.03) (  -0.06,-104.38)   39.19                80
 12/14/2018   20:05:11   (  -0.01,-104.04) (   0.91, -99.84)  478.29                80
 12/16/2018   08:26:59   (  -0.01,-104.25) (   0.22,-105.12)  100.46                80
 12/17/2018   08:05:35   (   0.01,-104.24) (  -0.81,-100.59)  415.90                80
 12/18/2018   20:27:30   (   0.01,-104.04) (  -0.43,-105.89)  211.37                80