Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 04/11/2021   22:15:25   (   0.04,-137.20) (   0.99,-133.08)  469.76                78
 04/13/2021   10:39:51   (  -0.03,-137.18) (   0.21,-138.35)  133.43                80
 04/14/2021   10:18:27   (  -0.04,-137.17) (  -0.79,-133.82)  381.39                80
 04/15/2021   22:40:24   (   0.03,-137.15) (  -0.39,-139.13)  225.20                80
 04/16/2021   22:24:19   (   0.03,-137.14) (   0.61,-134.60)  289.22                80
 04/18/2021   10:46:08   (  -0.03,-137.10) (   0.58,-139.87)  315.27                80
 04/19/2021   10:24:43   (  -0.03,-137.08) (  -0.41,-135.34)  198.61                80
 04/20/2021   22:46:40   (   0.02,-137.05) (  -0.76,-140.65)  409.44                80
 04/21/2021   22:30:36   (   0.02,-137.03) (   0.24,-136.12)  104.20                80
 04/24/2021   10:31:00   (  -0.01,-136.96) (  -0.05,-136.86)   11.96                80