Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2019   08:17:59   (  -0.02,-104.31) (  -0.19,-103.62)   78.07                80
 01/14/2019   20:21:09   (   0.03,-104.07) (  -0.05,-104.38)   35.04                80
 01/15/2019   20:05:05   (   0.02,-104.08) (   0.99, -99.86)  481.97                80
 01/17/2019   08:26:53   (  -0.02,-104.32) (   0.13,-105.14)   92.37                80
 01/18/2019   08:05:28   (  -0.02,-104.32) (  -0.85,-100.60)  424.08                80
 01/19/2019   20:27:22   (   0.02,-104.07) (  -0.42,-105.88)  206.83                80
 01/20/2019   20:11:17   (   0.01,-104.07) (   0.63,-101.36)  309.77                80
 01/22/2019   08:31:46   (  -0.01,-104.32) (   0.50,-106.64)  264.45                 0
 01/23/2019   08:11:40   (  -0.01,-104.31) (  -0.48,-102.10)  251.93                80
 01/24/2019   20:33:36   (   0.01,-104.07) (  -0.72,-107.40)  379.23                80