Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 12.  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)
 05/12/2021   18:53:23   (   0.05,-137.19) (   0.91,-141.00)  434.15                80
 05/13/2021   18:35:25   (   0.05,-137.18) (  -0.20,-136.01)  133.90                80
 05/15/2021   06:51:47   (  -0.04,-137.16) (  -0.82,-140.61)  392.70                80
 05/16/2021   06:33:49   (  -0.04,-137.15) (   0.30,-135.62)  174.80                80
 05/17/2021   18:50:01   (   0.03,-137.14) (   0.74,-140.17)  346.81                80
 05/18/2021   18:32:03   (   0.03,-137.12) (  -0.38,-135.18)  220.39                80
 05/20/2021   06:48:25   (  -0.02,-137.09) (  -0.64,-139.78)  307.30                80
 05/21/2021   06:30:26   (  -0.02,-137.07) (   0.48,-134.79)  259.61                80
 05/22/2021   18:46:39   (   0.02,-137.05) (   0.55,-139.35)  262.90                80
 05/23/2021   18:28:40   (   0.02,-137.02) (  -0.57,-134.36)  303.66                80
 05/25/2021   06:45:03   (  -0.02,-136.98) (  -0.45,-138.96)  225.18                80
 05/26/2021   06:27:04   (  -0.02,-136.96) (   0.67,-133.97)  340.73                80