Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2019   20:33:13   (  -0.01,-104.05) (  -0.77,-107.30)  371.28                80
 12/11/2019   20:17:08   (  -0.02,-104.05) (   0.29,-102.77)  146.04                80
 12/13/2019   08:38:56   (   0.01,-104.28) (   0.85,-108.05)  429.37                80
 12/14/2019   08:17:30   (   0.02,-104.27) (  -0.15,-103.51)   86.52                80
 12/16/2019   20:20:40   (  -0.01,-104.03) (  -0.04,-104.28)   28.19                80
 12/17/2019   20:04:35   (  -0.02,-104.03) (   0.96, -99.74)  488.87                80
 12/19/2019   08:26:22   (  -0.00,-104.27) (   0.18,-105.02)   85.72                80
 12/20/2019   08:04:56   (   0.01,-104.26) (  -0.82,-100.48)  430.34                80
 12/21/2019   20:26:52   (   0.01,-104.01) (  -0.37,-105.78)  201.62                80
 12/22/2019   20:10:46   (  -0.00,-104.01) (   0.64,-101.25)  315.51                80