Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2019 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2019   18:45:51   (   0.02,-137.21) (   0.50,-139.34)  242.38                80
 09/22/2019   18:27:52   (   0.02,-137.21) (  -0.63,-134.35)  326.46                80
 09/24/2019   06:46:52   (  -0.02,-137.19) (  -0.40,-138.94)  199.16                80
 09/25/2019   06:23:33   (  -0.01,-137.18) (   0.73,-133.95)  368.83                80
 09/26/2019   18:42:24   (  -0.01,-137.18) (   0.28,-138.51)  151.73                80
 09/27/2019   18:24:24   (  -0.01,-137.17) (  -0.85,-133.52)  416.32                80
 09/29/2019   06:43:24   (   0.01,-137.14) (  -0.23,-138.11)  110.07                80
 09/30/2019   06:20:04   (   0.01,-137.13) (   0.90,-133.11)  457.73                80
 10/01/2019   18:38:55   (  -0.02,-137.12) (   0.11,-137.67)   63.55                80
 10/04/2019   06:37:15   (   0.02,-137.07) (  -0.05,-137.27)   23.58                80