Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2021   18:43:19   (  -0.04,-137.21) (   0.06,-137.67)   52.50                80
 12/12/2021   06:41:39   (   0.03,-137.21) (  -0.01,-137.26)    6.60                80
 12/14/2021   18:37:12   (  -0.03,-137.21) (  -0.12,-136.83)   43.78                80
 12/16/2021   06:58:52   (   0.03,-137.21) (  -0.94,-141.41)  479.78                80
 12/17/2021   06:35:33   (   0.03,-137.20) (   0.22,-136.43)   88.87                80
 12/18/2021   18:54:25   (  -0.02,-137.19) (   0.85,-140.98)  432.09                80
 12/19/2021   18:36:26   (  -0.02,-137.18) (  -0.31,-135.99)  136.26                80
 12/21/2021   06:55:25   (   0.01,-137.17) (  -0.76,-140.58)  388.73                80
 12/22/2021   06:32:06   (   0.01,-137.15) (   0.34,-135.58)  179.15                80