Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 29.  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)
 04/29/2021   18:24:53   (   0.05,-137.20) (  -0.76,-133.49)  423.00                80
 05/01/2021   06:43:55   (  -0.04,-137.17) (  -0.25,-138.09)  104.22                80
 05/02/2021   06:20:36   (  -0.04,-137.17) (   0.86,-133.10)  463.63                80
 05/03/2021   18:39:30   (   0.03,-137.17) (   0.13,-137.66)   56.05                80
 05/06/2021   06:40:34   (  -0.03,-137.13) (  -0.04,-137.27)   16.04                80
 05/08/2021   18:38:47   (   0.03,-137.12) (  -0.03,-136.84)   32.00                80
 05/10/2021   06:57:50   (  -0.03,-137.08) (  -0.98,-141.44)  496.02                80
 05/11/2021   06:34:31   (  -0.02,-137.07) (   0.13,-136.45)   71.20                80
 05/12/2021   18:53:23   (   0.02,-137.05) (   0.91,-141.00)  449.95                80