Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 4 23.  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)
 04/23/2021   17:34:10   (   0.04,-137.21) (   0.66,-139.93)  310.08                80
 04/24/2021   17:10:51   (   0.04,-137.21) (  -0.44,-134.95)  256.70                80
 04/26/2021   05:32:32   (  -0.04,-137.19) (  -0.55,-139.60)  273.34                80
 04/27/2021   05:09:12   (  -0.04,-137.19) (   0.56,-134.62)  292.95                80
 04/28/2021   17:28:04   (   0.03,-137.18) (   0.47,-139.22)  231.51                80
 04/29/2021   17:10:04   (   0.03,-137.17) (  -0.63,-134.24)  334.17                80
 05/01/2021   05:29:05   (  -0.03,-137.14) (  -0.41,-138.88)  197.54                80
 05/02/2021   05:05:45   (  -0.02,-137.13) (   0.70,-133.90)  367.70                80
 05/03/2021   17:24:36   (   0.02,-137.12) (   0.33,-138.50)  158.01                80
 05/04/2021   17:06:37   (   0.02,-137.10) (  -0.77,-133.53)  407.19                80
 05/06/2021   05:25:37   (  -0.02,-137.07) (  -0.26,-138.16)  124.86                80