Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2021   06:50:38   (  -0.04,-137.20) (  -0.62,-139.72)  287.82                80
 04/22/2021   06:27:19   (  -0.04,-137.20) (   0.53,-134.74)  281.48                80
 04/23/2021   18:46:09   (   0.04,-137.21) (   0.51,-139.29)  237.67                80
 04/24/2021   18:28:09   (   0.04,-137.20) (  -0.58,-134.29)  331.46                80
 04/26/2021   06:47:09   (  -0.04,-137.19) (  -0.39,-138.90)  193.27                80
 04/27/2021   06:23:49   (  -0.04,-137.19) (   0.70,-133.89)  375.33                80
 04/28/2021   18:42:39   (   0.04,-137.18) (   0.33,-138.45)  145.21                80
 04/29/2021   18:24:40   (   0.04,-137.17) (  -0.82,-133.46)  422.83                80
 05/01/2021   06:43:39   (  -0.03,-137.14) (  -0.22,-138.06)  103.62                80
 05/02/2021   06:20:18   (  -0.03,-137.13) (   0.87,-133.05)  463.93                80
 05/03/2021   18:39:09   (   0.02,-137.11) (   0.15,-137.61)   57.84                80