Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 21.  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)
 12/21/2021   18:40:11   (  -0.03,-137.21) (   0.05,-137.68)   52.31                80
 12/24/2021   06:41:11   (   0.03,-137.20) (   0.03,-137.27)    8.50                80
 12/26/2021   18:39:22   (  -0.02,-137.20) (  -0.10,-136.83)   41.53                80
 12/28/2021   06:58:21   (   0.02,-137.18) (  -0.95,-141.42)  484.11                80
 12/29/2021   06:35:02   (   0.02,-137.17) (   0.18,-136.43)   83.93                80
 12/30/2021   18:53:53   (  -0.02,-137.15) (   0.81,-140.99)  436.85                80
 12/31/2021   18:35:52   (  -0.02,-137.14) (  -0.26,-135.99)  130.77                80
 01/02/2022   06:54:52   (   0.02,-137.10) (  -0.78,-140.58)  396.55                80
 01/03/2022   06:31:32   (   0.01,-137.08) (   0.35,-135.59)  170.60                80