Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 8 30.  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)
 09/01/2021   18:39:29   (  -0.02,-137.21) (  -0.10,-136.84)   41.82                80
 09/03/2021   06:55:50   (   0.03,-137.20) (  -0.95,-141.43)  482.98                80
 09/04/2021   06:37:51   (   0.03,-137.19) (   0.22,-136.45)   85.87                80
 09/05/2021   18:54:02   (  -0.03,-137.19) (   0.81,-141.00)  433.69                80
 09/06/2021   18:36:03   (  -0.03,-137.19) (  -0.30,-136.00)  134.92                80
 09/08/2021   06:55:03   (   0.03,-137.17) (  -0.75,-140.60)  390.67                80
 09/09/2021   06:34:24   (   0.03,-137.16) (   0.36,-135.60)  177.55                80
 09/10/2021   18:50:35   (  -0.03,-137.15) (   0.66,-140.16)  343.06                80
 09/11/2021   18:32:36   (  -0.03,-137.14) (  -0.44,-135.16)  224.69                80
 09/13/2021   06:48:57   (   0.02,-137.10) (  -0.54,-139.76)  302.49                80