Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 7 19.  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)
 07/19/2021   18:47:03   (   0.01,-137.21) (   0.46,-139.37)  244.59                80
 07/20/2021   18:29:04   (   0.01,-137.21) (  -0.63,-134.37)  324.44                80
 07/22/2021   06:45:24   (  -0.01,-137.19) (  -0.40,-138.96)  200.91                80
 07/23/2021   06:27:25   (  -0.02,-137.19) (   0.69,-133.96)  367.61                80
 07/24/2021   18:43:37   (   0.01,-137.19) (   0.33,-138.52)  152.49                80
 07/25/2021   18:25:39   (   0.01,-137.18) (  -0.82,-133.53)  415.74                80
 07/27/2021   06:41:59   (   0.01,-137.16) (  -0.21,-138.13)  110.46                80
 07/28/2021   06:24:00   (   0.02,-137.15) (   0.94,-133.14)  457.77                80
 07/29/2021   18:40:13   (  -0.02,-137.15) (   0.09,-137.70)   62.63                80
 08/01/2021   06:38:33   (   0.01,-137.11) (  -0.02,-137.29)   20.90                80