Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 4.  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)
 01/05/2021   06:44:18   (   0.00,-137.21) (  -0.23,-138.12)  104.55                80
 01/06/2021   06:20:59   (   0.00,-137.22) (   0.90,-133.14)  465.32                80
 01/07/2021   18:39:52   (   0.00,-137.24) (   0.11,-137.70)   52.18                80
 01/10/2021   06:40:54   (  -0.01,-137.24) (  -0.03,-137.31)    7.94                80
 01/12/2021   18:36:28   (   0.01,-137.25) (  -0.10,-136.88)   42.12                80
 01/14/2021   06:58:09   (  -0.01,-137.23) (  -0.95,-141.48)  483.82                80
 01/15/2021   06:34:51   (  -0.01,-137.23) (   0.18,-136.49)   84.66                80
 01/16/2021   18:56:22   (   0.01,-137.23) (   0.88,-141.04)  434.64                80
 01/17/2021   18:33:04   (   0.01,-137.23) (  -0.25,-136.05)  133.76                80