Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2021   09:55:00   (   0.02,-128.04) (  -0.12,-127.30)   84.01                80
 12/08/2021   21:55:30   (  -0.01,-127.97) (  -0.03,-128.07)   10.55                80
 12/11/2021   09:58:31   (  -0.01,-127.89) (   0.20,-128.79)  102.93                80
 12/12/2021   09:42:26   (   0.01,-127.86) (  -0.82,-124.26)  410.86                80
 12/13/2021   22:01:40   (   0.02,-127.82) (  -0.40,-129.54)  197.72                80
 12/14/2021   21:45:34   (   0.00,-127.78) (   0.62,-125.01)  316.05                80
 12/16/2021   10:04:41   (  -0.02,-127.73) (   0.57,-130.27)  290.44                80
 12/17/2021   09:48:35   (  -0.01,-127.69) (  -0.45,-125.74)  222.81                80
 12/18/2021   22:07:50   (   0.03,-127.64) (  -0.76,-131.03)  387.03                80
 12/19/2021   21:51:44   (   0.01,-127.60) (   0.26,-126.49)  125.94                80