Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2019   08:26:52   (   0.34,-104.21) (   0.53,-104.96)   85.81                80
 09/15/2019   08:05:28   (   0.34,-104.20) (  -0.49,-100.43)  429.51                80
 09/16/2019   20:27:24   (  -0.33,-104.29) (  -0.69,-105.73)  165.43                80
 09/17/2019   20:11:20   (  -0.34,-104.29) (   0.34,-101.20)  351.74                80
 09/19/2019   08:33:08   (   0.33,-104.21) (   0.81,-106.48)  257.37                80
 09/20/2019   08:11:42   (   0.33,-104.20) (  -0.16,-101.94)  257.72                80
 09/21/2019   20:33:40   (  -0.32,-104.25) (  -0.96,-107.25)  341.09                80
 09/22/2019   20:17:34   (  -0.32,-104.25) (   0.01,-102.71)  175.63                80
 09/24/2019   08:39:22   (   0.30,-104.20) (   1.14,-107.98)  430.98                80
 09/25/2019   08:17:58   (   0.31,-104.18) (   0.12,-103.45)   83.83                80