Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 12 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/08/2021   04:02:32   (   0.21,-127.98) (  -0.48,-130.96)  339.86                80
 12/09/2021   03:50:44   (   0.21,-127.95) (   0.16,-128.07)   15.05                80
 12/10/2021   03:41:38   (   0.20,-127.92) (   0.85,-125.20)  310.15                80
 12/12/2021   16:02:19   (  -0.20,-127.86) (   0.31,-130.09)  254.81                80
 12/13/2021   15:50:32   (  -0.20,-127.83) (  -0.36,-127.22)   69.96                80
 12/14/2021   15:38:45   (  -0.20,-127.80) (  -0.98,-124.34)  394.54                80
 12/17/2021   03:56:53   (   0.19,-127.68) (  -0.16,-129.26)  179.44                80
 12/18/2021   03:47:45   (   0.19,-127.64) (   0.48,-126.38)  144.87                80
 12/19/2021   03:35:58   (   0.18,-127.60) (   1.12,-123.49)  469.01                80
 12/20/2021   16:08:28   (  -0.17,-127.56) (   0.67,-131.28)  423.16                80
 12/21/2021   15:54:00   (  -0.17,-127.52) (   0.05,-128.39)   99.48                80