Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 12 8.  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)
 12/09/2021   16:35:31   (  -0.03,-137.21) (   0.41,-139.16)  222.51                80
 12/10/2021   16:26:25   (  -0.03,-137.21) (  -0.26,-136.28)  105.94                80
 12/11/2021   16:14:38   (  -0.03,-137.21) (  -0.93,-133.41)  434.33                80
 12/13/2021   04:47:13   (   0.03,-137.21) (  -0.89,-141.21)  456.36                80
 12/14/2021   04:35:26   (   0.03,-137.21) (  -0.25,-138.33)  128.08                80
 12/15/2021   04:20:59   (   0.03,-137.21) (   0.44,-135.46)  200.12                80
 12/17/2021   16:41:41   (  -0.02,-137.20) (   0.73,-140.35)  360.23                80
 12/18/2021   16:29:55   (  -0.01,-137.19) (   0.05,-137.48)   32.77                80
 12/19/2021   16:20:48   (  -0.01,-137.18) (  -0.63,-134.61)  294.52                80