Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 1 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)
 01/09/2021   18:54:20   (  -0.01,-137.25) (   0.65,-140.18)  334.38                80
 01/10/2021   18:31:01   (  -0.02,-137.27) (  -0.50,-135.20)  236.39                80
 01/12/2021   06:52:43   (   0.02,-137.28) (  -0.55,-139.79)  286.93                80
 01/13/2021   06:29:24   (   0.02,-137.29) (   0.60,-134.81)  283.66                80
 01/14/2021   18:48:14   (  -0.02,-137.33) (   0.46,-139.35)  231.69                80
 01/15/2021   18:30:16   (  -0.01,-137.34) (  -0.69,-134.37)  339.09                80
 01/17/2021   06:46:37   (  -0.01,-137.34) (  -0.36,-138.96)  183.98                80
 01/18/2021   06:25:58   (  -0.02,-137.36) (   0.74,-133.96)  386.65                80
 01/19/2021   18:47:29   (   0.02,-137.39) (   0.27,-138.52)  129.21                80
 01/20/2021   18:24:10   (   0.02,-137.40) (  -0.83,-133.52)  440.89                80
 01/22/2021   06:43:12   (   0.01,-137.39) (  -0.16,-138.13)   84.21                80