Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 28.  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)
 12/28/2021   06:58:21   (   0.01,-137.21) (  -0.95,-141.42)  480.07                80
 12/29/2021   06:35:02   (   0.02,-137.21) (   0.18,-136.43)   89.08                80
 12/30/2021   18:56:33   (  -0.02,-137.22) (   0.81,-140.99)  430.09                80
 12/31/2021   18:33:13   (  -0.02,-137.21) (  -0.32,-136.00)  138.55                80
 01/02/2022   06:54:53   (   0.02,-137.19) (  -0.73,-140.59)  387.16                80
 01/03/2022   06:31:32   (   0.02,-137.18) (   0.35,-135.59)  181.06                80
 01/04/2022   18:50:23   (  -0.02,-137.17) (   0.64,-140.15)  339.39                80
 01/05/2022   18:32:23   (  -0.02,-137.16) (  -0.44,-135.15)  228.82                80
 01/07/2022   06:51:23   (   0.02,-137.14) (  -0.55,-139.75)  297.27                80
 01/08/2022   06:28:03   (   0.02,-137.13) (   0.53,-134.75)  270.80                80
 01/09/2022   18:46:54   (  -0.02,-137.12) (   0.45,-139.32)  249.96                80
 01/10/2022   18:28:54   (  -0.01,-137.10) (  -0.64,-134.31)  317.98                80