Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 14.  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)
 12/14/2021   06:48:07   (   0.03,-137.21) (  -0.38,-138.93)  197.17                80
 12/15/2021   06:24:47   (   0.03,-137.20) (   0.74,-133.94)  371.63                80
 12/16/2021   18:43:38   (  -0.03,-137.20) (   0.29,-138.50)  148.05                80
 12/17/2021   18:25:39   (  -0.03,-137.20) (  -0.84,-133.51)  420.44                80
 12/19/2021   06:44:39   (   0.03,-137.18) (  -0.15,-138.11)  105.41                80
 12/20/2021   06:21:19   (   0.03,-137.16) (   0.91,-133.10)  462.57                80
 12/21/2021   18:40:10   (  -0.02,-137.15) (   0.11,-137.66)   58.48                80
 12/24/2021   06:41:10   (   0.01,-137.11) (  -0.03,-137.26)   17.67                80
 12/26/2021   18:39:22   (  -0.01,-137.07) (  -0.08,-136.83)   27.68                80