Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2019   08:33:08   (   0.33,-104.21) (   0.82,-106.47)  257.29                80
 09/20/2019   08:11:42   (   0.33,-104.20) (  -0.14,-101.93)  257.93                80
 09/21/2019   20:33:39   (  -0.32,-104.26) (  -0.98,-107.25)  339.57                80
 09/22/2019   20:17:35   (  -0.32,-104.27) (   0.05,-102.72)  177.30                80
 09/24/2019   08:39:22   (   0.30,-104.21) (   1.15,-107.98)  430.15                80
 09/25/2019   08:17:58   (   0.31,-104.19) (   0.13,-103.45)   84.77                80
 09/27/2019   20:23:50   (  -0.30,-104.22) (  -0.27,-104.22)    3.09                80
 09/30/2019   08:26:52   (   0.29,-104.18) (   0.45,-104.96)   87.61                80
 10/01/2019   08:05:27   (   0.30,-104.17) (  -0.52,-100.41)  427.69                80