Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 9.  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)
 05/10/2021   06:55:10   (  -0.05,-137.19) (  -0.97,-141.44)  483.20                80
 05/11/2021   06:37:11   (  -0.05,-137.19) (   0.14,-136.44)   85.44                80
 05/12/2021   18:53:24   (   0.04,-137.19) (   0.90,-141.00)  434.28                80
 05/13/2021   18:35:25   (   0.04,-137.19) (  -0.21,-136.01)  133.84                80
 05/15/2021   06:51:48   (  -0.03,-137.16) (  -0.81,-140.61)  392.93                80
 05/16/2021   06:33:49   (  -0.03,-137.15) (   0.31,-135.62)  174.63                80
 05/17/2021   18:50:01   (   0.02,-137.14) (   0.73,-140.18)  346.61                80
 05/18/2021   18:32:03   (   0.02,-137.13) (  -0.39,-135.18)  220.65                80
 05/20/2021   06:48:25   (  -0.02,-137.09) (  -0.63,-139.79)  307.20                80
 05/21/2021   06:30:27   (  -0.02,-137.08) (   0.49,-134.80)  259.76                80
 05/22/2021   18:46:39   (   0.01,-137.05) (   0.54,-139.35)  262.39                80