Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 9 21.  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)
 09/21/2021   10:21:18   (   0.03,-137.21) (  -0.71,-133.99)  367.33                80
 09/22/2021   22:40:33   (  -0.03,-137.20) (  -0.52,-139.28)  237.77                80
 09/23/2021   22:24:29   (  -0.03,-137.20) (   0.52,-134.76)  278.66                80
 09/25/2021   10:43:36   (   0.03,-137.20) (   0.65,-140.03)  321.68                80
 09/26/2021   10:27:30   (   0.03,-137.19) (  -0.33,-135.49)  194.19                80
 09/27/2021   22:46:47   (  -0.03,-137.18) (  -0.84,-140.79)  412.43                80
 09/28/2021   22:30:42   (  -0.02,-137.16) (   0.21,-136.27)  102.96                80
 09/30/2021   10:49:49   (   0.02,-137.15) (   1.02,-141.52)  498.96                80
 10/01/2021   10:33:44   (   0.01,-137.14) (  -0.02,-137.00)   15.90                80
 10/03/2021   22:34:15   (  -0.00,-137.09) (  -0.16,-137.77)   77.35                80
 10/04/2021   22:18:10   (  -0.00,-137.07) (   0.88,-133.24)  437.26                80