Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 12 15.  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)
 12/15/2021   04:21:00   (   0.05,-137.20) (   0.46,-135.46)  198.91                80
 12/17/2021   16:41:42   (  -0.04,-137.20) (   0.71,-140.35)  360.51                80
 12/18/2021   16:29:55   (  -0.03,-137.19) (   0.03,-137.48)   33.20                80
 12/19/2021   16:20:49   (  -0.03,-137.18) (  -0.65,-134.61)  293.96                80
 12/22/2021   04:38:54   (   0.02,-137.13) (  -0.52,-139.52)  272.29                80
 12/23/2021   04:29:47   (   0.02,-137.12) (   0.12,-136.64)   54.46                80
 12/24/2021   04:18:00   (   0.01,-137.10) (   0.82,-133.77)  381.05                80
 12/26/2021   16:36:04   (  -0.01,-137.07) (   0.35,-138.67)  182.93                80
 12/27/2021   16:26:57   (  -0.01,-137.05) (  -0.28,-135.79)  143.13                80
 12/28/2021   16:15:10   (  -0.01,-137.02) (  -0.97,-132.92)  468.98                80