Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2019   08:26:22   (   0.00,-104.28) (   0.18,-105.02)   84.05                80
 12/20/2019   08:04:56   (   0.01,-104.28) (  -0.82,-100.48)  432.40                80
 12/21/2019   20:26:52   (   0.00,-104.04) (  -0.38,-105.78)  197.72                80
 12/22/2019   20:10:46   (  -0.00,-104.05) (   0.63,-101.25)  319.75                80
 12/24/2019   08:32:33   (  -0.01,-104.30) (   0.51,-106.52)  253.53                80
 12/25/2019   08:11:08   (   0.00,-104.30) (  -0.50,-101.99)  263.01                80
 12/26/2019   20:33:03   (   0.01,-104.05) (  -0.69,-107.29)  368.68                80
 12/27/2019   20:16:58   (  -0.00,-104.05) (   0.31,-102.75)  148.76                80
 12/29/2019   08:38:45   (  -0.01,-104.32) (   0.82,-108.03)  422.92                80
 12/30/2019   08:17:20   (  -0.00,-104.32) (  -0.18,-103.49)   93.90                80