Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/09/2019   08:17:58   (   0.35,-104.22) (   0.18,-103.46)   86.51                80
 09/11/2019   20:23:49   (  -0.34,-104.31) (  -0.35,-104.23)    8.90                80
 09/14/2019   08:26:52   (   0.34,-104.22) (   0.53,-104.96)   85.40                80
 09/15/2019   08:05:28   (   0.34,-104.21) (  -0.49,-100.43)  430.02                80
 09/16/2019   20:27:24   (  -0.33,-104.29) (  -0.69,-105.74)  165.65                80
 09/17/2019   20:11:20   (  -0.34,-104.29) (   0.34,-101.21)  351.59                80
 09/19/2019   08:33:08   (   0.33,-104.22) (   0.81,-106.48)  256.64                80
 09/20/2019   08:11:42   (   0.33,-104.21) (  -0.15,-101.94)  258.54                80
 09/21/2019   20:33:40   (  -0.32,-104.26) (  -0.96,-107.25)  340.91                80
 09/22/2019   20:17:34   (  -0.32,-104.26) (   0.01,-102.71)  175.87                80