Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 6 10.  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)
 06/10/2021   21:52:49   (  -0.05,-128.44) (   0.36,-126.75)  193.77                80
 06/12/2021   10:14:38   (   0.04,-128.51) (   0.80,-132.02)  399.77                80
 06/13/2021   09:53:12   (   0.05,-128.50) (  -0.15,-127.48)  115.81                80
 06/14/2021   22:15:09   (  -0.04,-128.41) (  -1.00,-132.79)  498.94                80
 06/15/2021   21:59:04   (  -0.05,-128.41) (  -0.04,-128.25)   17.05                80
 06/18/2021   09:59:28   (   0.05,-128.46) (   0.19,-129.00)   61.80                80
 06/19/2021   09:40:43   (   0.06,-128.45) (  -0.82,-124.47)  453.21                80
 06/20/2021   22:02:40   (  -0.04,-128.35) (  -0.38,-129.77)  162.89                80
 06/21/2021   21:46:35   (  -0.05,-128.33) (   0.64,-125.24)  351.89                80
 06/23/2021   10:05:43   (   0.03,-128.39) (   0.52,-130.52)  243.24                80