Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 23.  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)
 01/24/2021   06:51:18   (  -0.00,-137.19) (  -0.62,-139.81)  300.16                80
 01/25/2021   06:28:00   (   0.02,-137.17) (   0.56,-134.83)  267.11                80
 01/26/2021   18:46:50   (  -0.01,-137.17) (   0.50,-139.38)  252.86                80
 01/27/2021   18:28:51   (  -0.00,-137.15) (  -0.62,-134.39)  314.64                80
 01/29/2021   06:45:11   (   0.00,-137.11) (  -0.42,-138.98)  213.76                80
 01/30/2021   06:27:11   (  -0.00,-137.09) (   0.70,-133.99)  353.31                80
 01/31/2021   18:43:22   (   0.00,-137.07) (   0.36,-138.54)  168.14                80
 02/01/2021   18:25:22   (   0.01,-137.04) (  -0.76,-133.54)  398.72                80
 02/03/2021   06:41:43   (  -0.01,-136.99) (  -0.28,-138.14)  130.58                80
 02/04/2021   06:23:43   (  -0.01,-136.97) (   0.84,-133.14)  435.68                80
 02/05/2021   18:39:54   (   0.00,-136.93) (   0.16,-137.70)   87.36                80