Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 8.  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)
 05/08/2021   18:38:48   (   0.05,-137.20) (  -0.06,-136.84)   42.07                80
 05/10/2021   06:55:09   (  -0.05,-137.19) (  -1.02,-141.43)  483.28                80
 05/11/2021   06:37:11   (  -0.05,-137.19) (   0.10,-136.44)   85.42                80
 05/12/2021   18:53:24   (   0.04,-137.19) (   0.89,-141.01)  434.17                80
 05/13/2021   18:35:26   (   0.04,-137.19) (  -0.23,-136.01)  133.96                80
 05/15/2021   06:51:48   (  -0.03,-137.16) (  -0.79,-140.62)  392.88                80
 05/16/2021   06:33:49   (  -0.03,-137.15) (   0.32,-135.62)  174.72                80
 05/17/2021   18:50:02   (   0.02,-137.14) (   0.71,-140.18)  346.37                80
 05/18/2021   18:32:03   (   0.02,-137.13) (  -0.40,-135.19)  220.89                80
 05/20/2021   06:48:25   (  -0.02,-137.09) (  -0.61,-139.79)  307.02                80
 05/21/2021   06:30:27   (  -0.02,-137.08) (   0.50,-134.80)  259.96                80