Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 4 8.  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)
 04/09/2021   17:21:15   (   0.03,-137.21) (   0.04,-137.11)   11.42                80
 04/12/2021   05:19:36   (  -0.03,-137.19) (   0.08,-136.78)   47.43                80
 04/13/2021   17:41:06   (   0.03,-137.19) (   0.97,-141.37)  476.22                80
 04/14/2021   17:17:47   (   0.03,-137.18) (  -0.16,-136.39)   89.79                80
 04/16/2021   05:39:26   (  -0.03,-137.15) (  -0.90,-141.02)  441.83                80
 04/17/2021   05:16:06   (  -0.03,-137.13) (   0.23,-136.05)  123.67                80
 04/18/2021   17:37:37   (   0.03,-137.12) (   0.82,-140.64)  401.49                80
 04/19/2021   17:14:17   (   0.02,-137.10) (  -0.31,-135.67)  163.52                80
 04/21/2021   05:33:17   (  -0.02,-137.05) (  -0.75,-140.30)  369.55                80