Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 22.  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)
 06/23/2021   06:45:15   (  -0.03,-137.19) (  -0.40,-138.97)  201.67                80
 06/24/2021   06:24:36   (  -0.03,-137.19) (   0.69,-133.97)  367.23                80
 06/25/2021   18:43:28   (   0.03,-137.19) (   0.33,-138.53)  152.51                80
 06/26/2021   18:25:30   (   0.03,-137.19) (  -0.81,-133.54)  416.12                80
 06/28/2021   06:44:30   (  -0.02,-137.17) (  -0.25,-138.13)  109.05                80
 06/29/2021   06:21:11   (  -0.02,-137.17) (   0.89,-133.14)  459.45                80
 06/30/2021   18:40:04   (   0.02,-137.16) (   0.13,-137.70)   60.74                80
 07/03/2021   06:41:06   (  -0.02,-137.14) (  -0.04,-137.30)   17.75                80
 07/05/2021   18:39:18   (   0.01,-137.12) (  -0.02,-136.86)   29.14                80