Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2020 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)
 12/28/2020   18:49:19   (  -0.02,-137.23) (   0.44,-139.35)  241.41                80
 12/29/2020   18:28:41   (  -0.02,-137.23) (  -0.69,-134.36)  327.15                80
 12/31/2020   06:47:42   (   0.02,-137.21) (  -0.35,-138.96)  198.55                80
 01/01/2021   06:24:23   (   0.02,-137.21) (   0.72,-133.96)  369.55                80
 01/02/2021   18:43:15   (  -0.02,-137.20) (   0.30,-138.52)  151.14                80
 01/03/2021   18:25:17   (  -0.02,-137.19) (  -0.83,-133.53)  416.79                80
 01/05/2021   06:44:18   (   0.01,-137.17) (  -0.21,-138.13)  109.71                80
 01/06/2021   06:20:59   (   0.01,-137.15) (   0.92,-133.14)  457.75                80
 01/07/2021   18:39:52   (  -0.02,-137.14) (   0.10,-137.70)   64.07                80
 01/10/2021   06:40:54   (   0.01,-137.09) (  -0.06,-137.30)   25.06                80