Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 8 18.  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)
 08/19/2021   10:40:09   (   0.04,-137.18) (   0.34,-138.53)  152.98                80
 08/20/2021   10:18:45   (   0.04,-137.17) (  -0.69,-134.00)  362.42                80
 08/21/2021   22:40:41   (  -0.03,-137.16) (  -0.49,-139.30)  244.43                80
 08/22/2021   22:24:35   (  -0.02,-137.15) (   0.49,-134.76)  270.98                80
 08/24/2021   10:43:44   (   0.02,-137.14) (   0.65,-140.04)  330.47                80
 08/25/2021   10:27:38   (   0.02,-137.13) (  -0.33,-135.50)  184.91                80
 08/26/2021   22:46:54   (  -0.02,-137.11) (  -0.85,-140.81)  422.28                80
 08/27/2021   22:30:50   (  -0.02,-137.09) (   0.18,-136.28)   92.81                80
 08/30/2021   10:33:53   (   0.01,-137.06) (  -0.02,-137.02)    5.57                80