Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 1.  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)
 12/01/2021   18:56:42   (  -0.03,-137.20) (   0.84,-141.00)  432.95                80
 12/02/2021   18:33:23   (  -0.03,-137.20) (  -0.28,-136.01)  135.89                80
 12/04/2021   06:55:03   (   0.03,-137.19) (  -0.71,-140.61)  389.16                80
 12/05/2021   06:31:43   (   0.03,-137.18) (   0.35,-135.60)  179.10                80
 12/06/2021   18:50:35   (  -0.02,-137.17) (   0.63,-140.17)  341.89                80
 12/07/2021   18:32:36   (  -0.02,-137.15) (  -0.49,-135.18)  226.11                80
 12/09/2021   06:51:35   (   0.01,-137.13) (  -0.56,-139.77)  299.95                80
 12/10/2021   06:28:15   (   0.01,-137.12) (   0.56,-134.77)  267.91                80
 12/11/2021   18:47:07   (  -0.01,-137.10) (   0.48,-139.33)  253.49                80
 12/12/2021   18:29:07   (  -0.01,-137.09) (  -0.64,-134.34)  314.30                80
 12/14/2021   06:48:06   (   0.00,-137.06) (  -0.40,-138.93)  212.13                80