Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2019   20:10:46   (  -0.01,-104.05) (   0.61,-101.24)  319.96                80
 12/24/2019   08:32:34   (  -0.01,-104.30) (   0.46,-106.53)  253.91                80
 12/25/2019   08:11:08   (   0.01,-104.29) (  -0.48,-101.98)  262.65                80
 12/26/2019   20:33:03   (   0.01,-104.05) (  -0.71,-107.28)  368.53                80
 12/27/2019   20:16:57   (  -0.00,-104.05) (   0.30,-102.75)  148.83                80
 12/29/2019   08:38:45   (  -0.01,-104.31) (   0.84,-108.02)  423.44                80
 12/30/2019   08:17:19   (  -0.00,-104.31) (  -0.17,-103.49)   93.39                80
 01/01/2020   20:20:29   (   0.01,-104.07) (  -0.01,-104.25)   21.01                80
 01/02/2020   20:04:24   (   0.00,-104.08) (   1.00, -99.72)  496.77                80
 01/04/2020   08:26:11   (  -0.01,-104.34) (   0.14,-105.00)   74.54                80