Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2019   20:23:50   (  -0.34,-104.31) (  -0.32,-104.24)    8.73                80
 09/14/2019   08:26:53   (   0.34,-104.22) (   0.50,-104.97)   85.63                80
 09/15/2019   08:05:28   (   0.34,-104.20) (  -0.53,-100.44)  429.70                80
 09/16/2019   20:27:25   (  -0.33,-104.29) (  -0.66,-105.74)  165.79                80
 09/17/2019   20:11:20   (  -0.34,-104.29) (   0.37,-101.21)  351.37                80
 09/19/2019   08:33:07   (   0.33,-104.22) (   0.84,-106.47)  257.12                80
 09/20/2019   08:11:43   (   0.33,-104.20) (  -0.19,-101.94)  257.99                80
 09/21/2019   20:33:39   (  -0.32,-104.25) (  -0.99,-107.25)  341.31                80
 09/22/2019   20:17:35   (  -0.32,-104.25) (   0.04,-102.72)  175.40                80
 09/24/2019   08:39:22   (   0.30,-104.20) (   1.17,-107.98)  430.65                80