Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 9 9.  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)
 09/09/2021   10:43:40   (   0.04,-137.21) (   0.65,-140.04)  322.02                80
 09/10/2021   10:27:35   (   0.04,-137.21) (  -0.33,-135.50)  194.39                80
 09/11/2021   22:46:51   (  -0.04,-137.20) (  -0.84,-140.80)  411.17                80
 09/12/2021   22:30:47   (  -0.04,-137.19) (   0.19,-136.28)  104.64                80
 09/14/2021   10:49:54   (   0.04,-137.18) (   0.98,-141.55)  497.01                80
 09/15/2021   10:33:49   (   0.03,-137.17) (   0.01,-137.01)   18.18                80
 09/17/2021   22:34:21   (  -0.02,-137.13) (  -0.14,-137.79)   74.08                80
 09/18/2021   22:18:15   (  -0.01,-137.12) (   0.84,-133.25)  441.01                80
 09/20/2021   10:37:22   (   0.01,-137.11) (   0.34,-138.52)  161.15                80
 09/21/2021   10:21:18   (   0.01,-137.09) (  -0.70,-133.99)  353.91                80
 09/22/2021   22:40:33   (  -0.01,-137.07) (  -0.52,-139.29)  253.45                80