Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 9 3.  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)
 09/04/2021   06:37:51   (   0.03,-137.20) (   0.18,-136.44)   86.10                80
 09/05/2021   18:54:03   (  -0.03,-137.20) (   0.79,-141.01)  433.48                80
 09/06/2021   18:36:03   (  -0.03,-137.19) (  -0.32,-136.01)  135.16                80
 09/08/2021   06:52:24   (   0.04,-137.17) (  -0.73,-140.60)  390.53                80
 09/09/2021   06:34:24   (   0.03,-137.16) (   0.37,-135.60)  177.77                80
 09/10/2021   18:50:36   (  -0.03,-137.16) (   0.65,-140.16)  342.70                80
 09/11/2021   18:32:36   (  -0.03,-137.14) (  -0.46,-135.16)  225.09                80
 09/13/2021   06:48:56   (   0.03,-137.11) (  -0.59,-139.75)  302.15                80
 09/14/2021   06:30:57   (   0.03,-137.09) (   0.52,-134.76)  265.08                80
 09/15/2021   18:47:08   (  -0.03,-137.06) (   0.50,-139.32)  257.02                80
 09/16/2021   18:29:09   (  -0.02,-137.04) (  -0.61,-134.32)  309.90                80