Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2020 12 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)
 12/19/2020   22:33:55   (   0.01,-137.22) (  -0.11,-137.63)   47.52                80
 12/20/2020   22:17:51   (   0.01,-137.22) (   0.90,-133.10)  468.75                80
 12/22/2020   10:36:59   (  -0.01,-137.22) (   0.26,-138.37)  131.76                80
 12/23/2020   10:20:55   (  -0.01,-137.22) (  -0.75,-133.84)  384.25                80
 12/24/2020   22:40:12   (   0.01,-137.20) (  -0.40,-139.16)  221.80                80
 12/25/2020   22:24:06   (   0.00,-137.19) (   0.55,-134.61)  293.90                80
 12/27/2020   10:43:15   (   0.00,-137.18) (   0.61,-139.88)  307.64                80
 12/28/2020   10:27:10   (   0.01,-137.17) (  -0.40,-135.35)  207.46                80
 12/29/2020   22:46:26   (  -0.01,-137.14) (  -0.80,-140.65)  400.15                80
 12/30/2020   22:30:22   (  -0.01,-137.12) (   0.21,-136.12)  114.31                80