Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 18.  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)
 06/18/2021   06:48:39   (  -0.03,-137.19) (  -0.63,-139.79)  296.17                80
 06/19/2021   06:30:41   (  -0.03,-137.19) (   0.51,-134.80)  272.56                80
 06/20/2021   18:46:53   (   0.03,-137.18) (   0.50,-139.36)  247.93                80
 06/21/2021   18:28:54   (   0.03,-137.18) (  -0.58,-134.36)  320.30                80
 06/23/2021   06:45:15   (  -0.03,-137.16) (  -0.43,-138.96)  205.62                80
 06/24/2021   06:27:15   (  -0.03,-137.14) (   0.66,-133.96)  361.97                80
 06/25/2021   18:43:28   (   0.02,-137.12) (   0.36,-138.52)  160.27                80
 06/26/2021   18:25:29   (   0.02,-137.10) (  -0.78,-133.53)  407.02                80
 06/28/2021   06:44:29   (  -0.02,-137.08) (  -0.28,-138.12)  119.71                80
 06/29/2021   06:21:11   (  -0.02,-137.06) (   0.87,-133.14)  447.51                80
 06/30/2021   18:40:03   (   0.02,-137.03) (   0.16,-137.69)   75.04                80
 07/01/2021   18:22:04   (   0.02,-137.02) (  -0.93,-132.69)  492.08                80