Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 12 9.  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)
 12/10/2021   03:41:38   (   0.20,-127.91) (   0.84,-125.20)  309.89                80
 12/12/2021   16:02:19   (  -0.20,-127.86) (   0.32,-130.09)  255.04                80
 12/13/2021   15:50:32   (  -0.20,-127.83) (  -0.36,-127.22)   69.61                80
 12/14/2021   15:38:45   (  -0.20,-127.79) (  -0.98,-124.33)  394.10                80
 12/17/2021   03:56:52   (   0.19,-127.67) (  -0.16,-129.26)  180.43                80
 12/18/2021   03:47:45   (   0.18,-127.63) (   0.48,-126.37)  143.78                80
 12/19/2021   03:35:57   (   0.18,-127.59) (   1.12,-123.49)  467.82                80
 12/20/2021   16:08:28   (  -0.17,-127.55) (   0.67,-131.27)  424.21                80
 12/21/2021   15:54:00   (  -0.17,-127.51) (   0.05,-128.39)  100.62                80
 12/22/2021   15:44:54   (  -0.16,-127.47) (  -0.64,-125.52)  222.89                80