Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 6 30.  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)
 06/30/2021   22:15:43   (  -0.02,-137.19) (   0.88,-133.24)  451.10                80
 07/02/2021   10:40:10   (   0.03,-137.18) (   0.33,-138.50)  150.03                80
 07/03/2021   10:18:46   (   0.02,-137.18) (  -0.69,-133.97)  365.60                80
 07/04/2021   22:43:22   (  -0.02,-137.17) (  -0.50,-139.27)  240.39                80
 07/05/2021   22:24:38   (  -0.01,-137.16) (   0.51,-134.75)  274.81                80
 07/07/2021   10:46:26   (   0.00,-137.14) (   0.64,-140.02)  327.78                80
 07/08/2021   10:25:02   (  -0.01,-137.13) (  -0.38,-135.49)  186.80                80
 07/09/2021   22:46:58   (   0.01,-137.10) (  -0.81,-140.80)  420.84                80
 07/10/2021   22:30:53   (   0.01,-137.09) (   0.21,-136.27)   93.57                80
 07/13/2021   10:31:16   (  -0.01,-137.04) (  -0.02,-137.00)    4.00                80