Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 1 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2019   20:11:18   (   0.01,-104.09) (   0.63,-101.36)  311.78                80
 01/22/2019   08:33:06   (  -0.01,-104.34) (   0.50,-106.64)  262.22                80
 01/23/2019   08:11:40   (  -0.01,-104.34) (  -0.49,-102.10)  254.48                80
 01/24/2019   20:33:36   (   0.02,-104.10) (  -0.72,-107.40)  375.80                80
 01/25/2019   20:17:30   (   0.02,-104.10) (   0.27,-102.86)  141.31                80
 01/27/2019   08:36:39   (  -0.02,-104.36) (   0.80,-108.15)  431.84                80
 01/28/2019   08:17:54   (  -0.02,-104.36) (  -0.18,-103.61)   85.31                80
 01/30/2019   20:21:04   (   0.00,-104.13) (  -0.03,-104.37)   27.37                80
 01/31/2019   20:04:58   (  -0.01,-104.14) (   0.95, -99.83)  490.12                80
 02/02/2019   08:24:07   (   0.01,-104.39) (   0.18,-105.11)   82.68                80