Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2019   08:11:43   (   0.33,-104.20) (  -0.17,-101.94)  257.92                80
 09/21/2019   20:33:39   (  -0.32,-104.27) (  -1.00,-107.24)  339.14                80
 09/22/2019   20:17:34   (  -0.32,-104.27) (   0.02,-102.71)  177.79                80
 09/24/2019   08:39:23   (   0.30,-104.21) (   1.12,-107.98)  429.83                80
 09/25/2019   08:17:57   (   0.31,-104.19) (   0.15,-103.44)   85.15                80
 09/27/2019   20:23:49   (  -0.30,-104.23) (  -0.30,-104.22)    1.57                80
 09/30/2019   08:26:52   (   0.29,-104.19) (   0.47,-104.95)   86.80                80
 10/01/2019   08:05:27   (   0.30,-104.18) (  -0.56,-100.42)  428.56                80
 10/02/2019   20:27:24   (  -0.28,-104.20) (  -0.60,-105.73)  173.20                80
 10/03/2019   20:11:18   (  -0.29,-104.21) (   0.37,-101.18)  344.07                80