Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 6 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)
 06/11/2021   10:31:14   (   0.00,-137.20) (  -0.06,-136.97)   26.70                80
 06/13/2021   22:37:06   (  -0.00,-137.19) (  -0.14,-137.74)   62.86                80
 06/14/2021   22:15:41   (   0.00,-137.19) (   0.87,-133.21)  452.89                80
 06/16/2021   10:40:09   (   0.00,-137.19) (   0.29,-138.49)  148.35                80
 06/17/2021   10:18:45   (   0.00,-137.18) (  -0.73,-133.96)  367.10                80
 06/18/2021   22:43:21   (  -0.01,-137.16) (  -0.48,-139.26)  239.37                80
 06/19/2021   22:21:57   (  -0.00,-137.15) (   0.54,-134.73)  275.68                80
 06/21/2021   10:46:25   (   0.00,-137.13) (   0.62,-140.01)  326.96                80
 06/22/2021   10:25:01   (  -0.00,-137.12) (  -0.39,-135.48)  187.46                80
 06/23/2021   22:46:57   (   0.01,-137.09) (  -0.81,-140.78)  420.76                80
 06/24/2021   22:30:52   (   0.01,-137.07) (   0.21,-136.25)   93.28                80