Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 4 21.  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)
 04/21/2021   05:35:58   (  -0.04,-137.20) (  -0.72,-140.31)  353.82                80
 04/22/2021   05:12:39   (  -0.04,-137.20) (   0.38,-135.33)  213.11                80
 04/23/2021   17:33:34   (   0.04,-137.21) (   0.65,-139.93)  310.32                44
 04/24/2021   17:10:51   (   0.04,-137.21) (  -0.46,-134.95)  256.41                80
 04/26/2021   05:32:31   (  -0.04,-137.19) (  -0.59,-139.59)  273.32                80
 04/27/2021   05:09:12   (  -0.04,-137.19) (   0.51,-134.61)  292.92                80
 04/28/2021   17:28:04   (   0.04,-137.18) (   0.45,-139.22)  231.98                80
 04/29/2021   17:10:04   (   0.03,-137.17) (  -0.59,-134.24)  333.69                80
 05/01/2021   05:29:05   (  -0.03,-137.14) (  -0.39,-138.88)  197.69                80
 05/02/2021   05:05:44   (  -0.02,-137.13) (   0.66,-133.89)  367.54                80
 05/03/2021   17:24:37   (   0.02,-137.11) (   0.30,-138.51)  158.64                80
 05/04/2021   17:06:36   (   0.02,-137.09) (  -0.75,-133.52)  406.55                80