Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 8 12.  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)
 08/12/2021   18:50:34   (  -0.02,-137.20) (   0.64,-140.18)  340.17                80
 08/13/2021   18:32:35   (  -0.02,-137.19) (  -0.46,-135.19)  228.58                80
 08/15/2021   06:48:55   (   0.02,-137.18) (  -0.57,-139.78)  296.99                80
 08/16/2021   06:30:56   (   0.01,-137.16) (   0.53,-134.78)  271.16                80
 08/17/2021   18:47:08   (  -0.01,-137.15) (   0.47,-139.34)  249.97                80
 08/18/2021   18:29:09   (  -0.01,-137.14) (  -0.63,-134.35)  317.63                80
 08/20/2021   06:45:29   (   0.02,-137.10) (  -0.41,-138.94)  209.63                80
 08/21/2021   06:27:30   (   0.03,-137.09) (   0.75,-133.95)  357.68                80
 08/22/2021   18:43:42   (  -0.02,-137.07) (   0.30,-138.51)  163.94                80
 08/23/2021   18:25:42   (  -0.02,-137.05) (  -0.80,-133.51)  403.40                80
 08/25/2021   06:44:42   (   0.02,-137.02) (  -0.23,-138.10)  123.79                80