Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 13.  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)
 06/13/2021   06:52:04   (  -0.04,-137.20) (  -0.82,-140.62)  390.38                80
 06/14/2021   06:34:05   (  -0.04,-137.19) (   0.32,-135.63)  178.25                80
 06/15/2021   18:50:17   (   0.03,-137.19) (   0.69,-140.19)  342.46                80
 06/16/2021   18:32:18   (   0.03,-137.18) (  -0.39,-135.19)  225.92                80
 06/18/2021   06:48:39   (  -0.03,-137.17) (  -0.63,-139.79)  299.31                80
 06/19/2021   06:30:41   (  -0.03,-137.16) (   0.51,-134.80)  268.75                80
 06/20/2021   18:46:53   (   0.03,-137.14) (   0.50,-139.36)  253.07                80
 06/21/2021   18:28:54   (   0.03,-137.12) (  -0.58,-134.36)  314.46                80
 06/23/2021   06:45:15   (  -0.02,-137.10) (  -0.43,-138.96)  212.19                80
 06/24/2021   06:27:15   (  -0.02,-137.08) (   0.66,-133.96)  354.70                80
 06/25/2021   18:43:28   (   0.02,-137.04) (   0.37,-138.52)  168.88                80
 06/26/2021   18:25:29   (   0.01,-137.02) (  -0.78,-133.53)  397.67                80