Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 22.  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)
 12/24/2021   06:41:11   (   0.02,-137.20) (   0.01,-137.27)    7.86                80
 12/26/2021   18:39:21   (  -0.02,-137.20) (  -0.08,-136.83)   42.01                80
 12/28/2021   06:58:22   (   0.02,-137.18) (  -0.91,-141.43)  483.70                80
 12/29/2021   06:35:01   (   0.02,-137.17) (   0.16,-136.42)   84.41                80
 12/30/2021   18:53:52   (  -0.02,-137.16) (   0.83,-140.99)  436.26                80
 12/31/2021   18:35:53   (  -0.02,-137.15) (  -0.30,-136.00)  131.40                80
 01/02/2022   06:54:52   (   0.02,-137.11) (  -0.75,-140.59)  395.96                80
 01/03/2022   06:31:32   (   0.01,-137.09) (   0.33,-135.58)  171.25                80
 01/04/2022   18:50:23   (  -0.01,-137.07) (   0.66,-140.15)  350.70                80