Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 1.  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)
 05/01/2021   06:43:55   (  -0.05,-137.19) (  -0.27,-138.08)  102.53                80
 05/02/2021   06:20:36   (  -0.05,-137.18) (   0.84,-133.09)  465.87                80
 05/03/2021   18:39:29   (   0.04,-137.19) (   0.15,-137.66)   53.02                80
 05/06/2021   06:40:33   (  -0.04,-137.17) (  -0.06,-137.27)   11.50                80
 05/08/2021   18:38:47   (   0.04,-137.17) (  -0.01,-136.83)   37.75                80
 05/10/2021   06:57:49   (  -0.03,-137.14) (  -1.01,-141.43)  489.68                80
 05/11/2021   06:34:31   (  -0.03,-137.13) (   0.11,-136.44)   78.03                80
 05/12/2021   18:53:24   (   0.03,-137.12) (   0.87,-141.01)  442.28                80
 05/13/2021   18:35:26   (   0.03,-137.11) (  -0.24,-136.02)  124.96                80