Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 4 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2021   06:45:52   (  -0.04,-137.17) (  -0.26,-138.12)  108.11                80
 04/20/2021   06:22:33   (  -0.04,-137.16) (   0.85,-133.13)  459.70                80
 04/21/2021   18:41:25   (   0.03,-137.15) (   0.14,-137.70)   61.60                80
 04/24/2021   06:42:26   (  -0.03,-137.11) (  -0.06,-137.30)   21.02                80
 04/26/2021   18:40:38   (   0.03,-137.07) (  -0.02,-136.86)   24.10                80
 04/29/2021   06:38:58   (  -0.03,-137.01) (   0.09,-136.46)   62.36                80
 04/30/2021   18:55:10   (   0.02,-136.97) (   0.93,-141.02)  461.30                80
 05/01/2021   18:37:10   (   0.02,-136.95) (  -0.18,-136.03)  104.64                80