Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 20.  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)
 01/20/2021   06:31:27   (  -0.01,-137.22) (   0.34,-135.66)  177.09                80
 01/21/2021   18:52:59   (   0.01,-137.21) (   0.66,-140.23)  342.97                80
 01/22/2021   18:29:39   (   0.00,-137.20) (  -0.41,-135.23)  224.69                80
 01/24/2021   06:48:42   (   0.02,-137.17) (  -0.58,-139.84)  303.35                80
 01/25/2021   06:30:42   (   0.01,-137.16) (   0.50,-134.84)  264.16                80
 01/26/2021   18:46:54   (  -0.01,-137.14) (   0.50,-139.40)  257.31                80
 01/27/2021   18:28:55   (  -0.00,-137.12) (  -0.58,-134.40)  309.57                80
 01/29/2021   06:45:17   (   0.00,-137.08) (  -0.40,-139.01)  219.33                80
 01/30/2021   06:27:18   (   0.00,-137.06) (   0.68,-134.01)  347.18                80
 01/31/2021   18:43:30   (   0.00,-137.03) (   0.33,-138.58)  175.52                80
 02/01/2021   18:25:31   (   0.00,-137.01) (  -0.75,-133.58)  390.70                80