Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 22.  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)
 01/22/2021   18:29:38   (   0.00,-137.22) (  -0.41,-135.22)  226.94                80
 01/24/2021   06:51:19   (   0.01,-137.19) (  -0.57,-139.83)  300.46                80
 01/25/2021   06:30:36   (   0.02,-137.17) (   0.55,-134.83)  267.21                76
 01/26/2021   18:46:50   (  -0.01,-137.17) (   0.50,-139.38)  252.89                80
 01/27/2021   18:28:50   (  -0.00,-137.15) (  -0.62,-134.39)  314.61                80
 01/29/2021   06:47:51   (   0.00,-137.11) (  -0.43,-138.98)  213.74                80
 01/30/2021   06:27:11   (  -0.00,-137.09) (   0.69,-133.99)  353.31                80
 01/31/2021   18:43:23   (   0.00,-137.07) (   0.30,-138.55)  168.17                80
 02/01/2021   18:25:22   (   0.00,-137.04) (  -0.76,-133.54)  398.69                80
 02/03/2021   06:41:42   (  -0.00,-136.99) (  -0.28,-138.13)  130.57                80
 02/04/2021   06:23:43   (  -0.00,-136.97) (   0.84,-133.14)  435.71                80