Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 17.  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   08:33:07   (   0.33,-104.21) (   0.86,-106.46)  257.30                80
 09/20/2019   08:11:42   (   0.33,-104.20) (  -0.16,-101.94)  257.88                80
 09/21/2019   20:33:39   (  -0.32,-104.26) (  -1.02,-107.24)  339.93                80
 09/22/2019   20:17:34   (  -0.32,-104.26) (   0.01,-102.71)  176.89                80
 09/24/2019   08:39:23   (   0.30,-104.20) (   1.13,-107.98)  430.38                80
 09/25/2019   08:17:57   (   0.31,-104.19) (   0.17,-103.44)   84.50                80
 09/27/2019   20:21:09   (  -0.30,-104.22) (  -0.31,-104.22)    1.41                80
 09/30/2019   08:26:52   (   0.29,-104.18) (   0.49,-104.95)   88.19                80
 10/01/2019   08:05:27   (   0.30,-104.16) (  -0.54,-100.42)  427.10                80