Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 12/04/2022   18:23:19   (   0.00, -75.20) (   0.23, -74.18)  116.42                80
 12/06/2022   06:35:35   (  -0.00, -75.21) (   0.57, -77.78)  293.23                80
 12/07/2022   06:15:02   (   0.00, -75.22) (  -0.70, -72.17)  347.71                80
 12/08/2022   18:27:30   (  -0.00, -75.23) (  -0.14, -75.82)   66.96                80
 12/10/2022   06:45:03   (   0.00, -75.25) (   0.96, -79.41)  475.05                80
 12/11/2022   06:19:10   (   0.01, -75.26) (  -0.31, -73.80)  166.25                80
 12/12/2022   18:34:20   (  -0.01, -75.28) (  -0.50, -77.46)  248.46                80
 12/13/2022   18:13:47   (  -0.01, -75.29) (   0.74, -71.84)  393.13                80
 12/15/2022   06:28:39   (   0.01, -75.32) (   0.00, -75.44)   13.16                80