Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 4 20.  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   05:35:59   (  -0.03,-137.20) (  -0.71,-140.31)  354.08                80
 04/22/2021   05:12:39   (  -0.03,-137.20) (   0.40,-135.33)  212.76                80
 04/23/2021   17:31:31   (   0.03,-137.20) (   0.63,-139.93)  310.92                80
 04/24/2021   17:13:31   (   0.03,-137.20) (  -0.47,-134.96)  255.72                80
 04/26/2021   05:32:31   (  -0.03,-137.19) (  -0.58,-139.59)  274.04                80
 04/27/2021   05:09:12   (  -0.03,-137.18) (   0.53,-134.61)  292.10                80
 04/28/2021   17:28:03   (   0.03,-137.17) (   0.50,-139.21)  233.04                80
 04/29/2021   17:10:04   (   0.02,-137.16) (  -0.61,-134.24)  332.54                80
 05/01/2021   05:29:05   (  -0.02,-137.13) (  -0.37,-138.89)  198.88                80
 05/02/2021   05:05:45   (  -0.02,-137.12) (   0.68,-133.90)  366.27                80
 05/03/2021   17:24:37   (   0.01,-137.10) (   0.29,-138.51)  160.19                80