Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 12 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/15/2021   16:49:21   (  -0.04,-137.21) (  -0.84,-133.42)  430.91                80
 12/16/2021   05:05:04   (   0.04,-137.20) (   0.02,-137.20)    2.56                80
 12/16/2021   17:19:37   (  -0.04,-137.21) (   0.84,-141.36)  471.94                80
 12/18/2021   16:51:16   (  -0.03,-137.19) (  -0.75,-133.74)  392.06                80
 12/19/2021   05:07:08   (   0.03,-137.18) (  -0.05,-137.57)   44.45                80
 12/21/2021   16:53:10   (  -0.02,-137.15) (  -0.71,-134.07)  351.97                80
 12/22/2021   05:09:12   (   0.02,-137.14) (  -0.18,-137.92)   89.59                80
 12/24/2021   16:55:03   (  -0.01,-137.11) (  -0.58,-134.37)  310.82                80
 12/25/2021   05:11:16   (   0.01,-137.09) (  -0.27,-138.28)  135.97                80
 12/27/2021   16:56:55   (  -0.01,-137.05) (  -0.49,-134.68)  268.72                80