Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2020 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2020   15:26:12   (  -0.04,-137.23) (  -0.54,-135.12)  241.11                80
 12/24/2020   03:47:06   (   0.04,-137.21) (  -0.64,-140.05)  324.67                80
 12/25/2020   03:32:44   (   0.04,-137.21) (   0.04,-137.20)    1.39                80
 12/26/2020   03:21:01   (   0.03,-137.20) (   0.71,-134.34)  327.16                80
 12/28/2020   15:41:57   (  -0.02,-137.18) (   0.47,-139.28)  240.10                80
 12/29/2020   15:32:55   (  -0.02,-137.16) (  -0.21,-136.42)   85.17                80
 12/30/2020   15:21:11   (  -0.01,-137.15) (  -0.83,-133.55)  410.17                80
 01/01/2021   03:51:08   (   0.01,-137.11) (  -0.99,-141.35)  484.39                80
 01/02/2021   03:39:26   (   0.00,-137.09) (  -0.31,-138.50)  159.93                80
 01/03/2021   03:30:24   (   0.00,-137.07) (   0.36,-135.64)  164.42                80