Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 19.  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)
 05/20/2021   06:48:25   (  -0.04,-137.20) (  -0.60,-139.79)  294.91                80
 05/21/2021   06:30:27   (  -0.04,-137.20) (   0.51,-134.80)  273.75                80
 05/22/2021   18:46:39   (   0.04,-137.19) (   0.52,-139.36)  246.41                80
 05/23/2021   18:28:41   (   0.04,-137.19) (  -0.60,-134.36)  321.90                80
 05/25/2021   06:45:03   (  -0.04,-137.17) (  -0.41,-138.97)  204.09                80
 05/26/2021   06:27:05   (  -0.04,-137.16) (   0.70,-133.98)  363.57                80
 05/27/2021   18:43:17   (   0.03,-137.14) (   0.32,-138.53)  158.39                80
 05/28/2021   18:25:19   (   0.03,-137.13) (  -0.79,-133.54)  408.76                80
 05/30/2021   06:44:20   (  -0.02,-137.10) (  -0.27,-138.13)  118.62                80
 05/31/2021   06:21:01   (  -0.02,-137.08) (   0.85,-133.14)  448.33                80
 06/01/2021   18:39:54   (   0.01,-137.05) (   0.18,-137.70)   74.34                80