Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 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)
 01/19/2021   06:54:45   (  -0.00,-137.20) (  -0.77,-140.66)  393.32                80
 01/20/2021   06:31:27   (  -0.00,-137.20) (   0.36,-135.67)  175.52                80
 01/21/2021   18:50:18   (   0.00,-137.21) (   0.69,-140.22)  343.32                80
 01/22/2021   18:32:20   (   0.00,-137.21) (  -0.44,-135.23)  225.15                80
 01/24/2021   06:51:21   (  -0.01,-137.18) (  -0.60,-139.83)  301.53                80
 01/25/2021   06:28:03   (  -0.01,-137.18) (   0.53,-134.84)  266.35                80
 01/26/2021   18:46:54   (   0.01,-137.17) (   0.52,-139.40)  254.10                80
 01/27/2021   18:28:55   (   0.01,-137.16) (  -0.61,-134.41)  313.33                80
 01/29/2021   06:47:57   (  -0.01,-137.12) (  -0.43,-139.00)  214.76                80
 01/30/2021   06:24:38   (  -0.01,-137.10) (   0.71,-134.02)  352.22                80
 01/31/2021   18:43:30   (   0.01,-137.09) (   0.35,-138.57)  169.48                80
 02/01/2021   18:25:31   (   0.01,-137.07) (  -0.79,-133.58)  397.29                80