Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 10 9.  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)
 10/09/2021   18:50:34   (  -0.05,-137.21) (   0.63,-140.14)  335.25                80
 10/10/2021   18:32:36   (  -0.05,-137.20) (  -0.52,-135.16)  233.00                80
 10/12/2021   06:48:56   (   0.04,-137.18) (  -0.54,-139.75)  292.79                80
 10/13/2021   06:30:57   (   0.04,-137.17) (   0.61,-134.76)  275.03                80
 10/14/2021   18:47:09   (  -0.04,-137.15) (   0.44,-139.32)  246.74                80
 10/15/2021   18:29:09   (  -0.04,-137.14) (  -0.65,-134.32)  320.95                80
 10/17/2021   06:48:11   (   0.03,-137.12) (  -0.35,-138.92)  205.21                80
 10/18/2021   06:27:31   (   0.03,-137.10) (   0.75,-133.92)  362.37                80
 10/19/2021   18:43:42   (  -0.03,-137.08) (   0.31,-138.48)  159.84                80
 10/20/2021   18:25:44   (  -0.03,-137.06) (  -0.85,-133.49)  407.50                80
 10/22/2021   06:42:04   (   0.03,-137.04) (  -0.20,-138.08)  119.35                80