Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 7 19.  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)
 07/19/2021   10:18:47   (   0.04,-137.21) (  -0.69,-133.98)  367.76                80
 07/20/2021   22:43:23   (  -0.03,-137.21) (  -0.50,-139.29)  237.47                80
 07/21/2021   22:21:58   (  -0.02,-137.20) (   0.52,-134.76)  278.17                80
 07/23/2021   10:46:27   (   0.02,-137.19) (   0.63,-140.04)  323.59                80
 07/24/2021   10:25:02   (   0.01,-137.18) (  -0.39,-135.51)  191.83                80
 07/25/2021   22:46:57   (  -0.02,-137.17) (  -0.85,-140.80)  414.04                80
 07/26/2021   22:30:53   (  -0.03,-137.16) (   0.17,-136.27)  101.63                80
 07/29/2021   10:31:16   (   0.03,-137.15) (   0.02,-137.01)   15.32                80
 07/31/2021   22:34:28   (  -0.02,-137.11) (  -0.17,-137.79)   76.52                80
 08/01/2021   22:18:23   (  -0.02,-137.10) (   0.85,-133.26)  438.21                80