Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2019   08:13:47   (   0.13,-104.38) (  -0.39,-101.96)  275.20                80
 04/30/2019   20:35:46   (  -0.11,-104.40) (  -0.74,-107.28)  327.15                80
 05/01/2019   20:14:21   (  -0.12,-104.40) (   0.25,-102.74)  188.78                80
 05/03/2019   08:36:10   (   0.11,-104.37) (   0.95,-108.01)  415.44                80
 05/04/2019   08:20:06   (   0.11,-104.38) (  -0.09,-103.49)  101.43                80
 05/05/2019   20:42:03   (  -0.10,-104.42) (  -1.09,-108.80)  499.36                80
 05/06/2019   20:20:39   (  -0.11,-104.41) (  -0.10,-104.26)   16.63                80
 05/09/2019   08:23:44   (   0.10,-104.36) (   0.26,-105.01)   73.84                80
 05/10/2019   08:07:40   (   0.11,-104.36) (  -0.79,-100.49)  442.64                80
 05/11/2019   20:29:38   (  -0.09,-104.41) (  -0.39,-105.80)  157.93                80