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)
 12/09/2021   03:52:03   (   0.21,-127.95) (   0.18,-128.08)   14.95                 2
 12/10/2021   03:41:37   (   0.20,-127.92) (   0.81,-125.19)  310.01                80
 12/12/2021   16:02:19   (  -0.20,-127.86) (   0.29,-130.10)  254.96                80
 12/13/2021   15:50:32   (  -0.20,-127.83) (  -0.32,-127.21)   69.76                80
 12/14/2021   15:38:45   (  -0.20,-127.79) (  -1.00,-124.34)  394.30                80
 12/17/2021   03:56:52   (   0.19,-127.68) (  -0.20,-129.25)  179.94                80
 12/18/2021   03:47:45   (   0.18,-127.64) (   0.50,-126.38)  144.35                80
 12/19/2021   03:35:58   (   0.18,-127.60) (   1.14,-123.50)  468.42                80
 12/20/2021   16:08:27   (  -0.17,-127.56) (   0.71,-131.27)  423.69                80
 12/21/2021   15:54:01   (  -0.17,-127.52) (   0.03,-128.40)  100.06                80
 12/22/2021   15:44:53   (  -0.16,-127.47) (  -0.60,-125.51)  223.50                80