Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 4.  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   (   0.01, -75.20) (   0.23, -74.18)  116.21                80
 12/06/2022   06:35:35   (  -0.01, -75.21) (   0.57, -77.78)  293.79                80
 12/07/2022   06:15:02   (   0.00, -75.21) (  -0.70, -72.17)  347.03                80
 12/08/2022   18:27:29   (  -0.00, -75.23) (  -0.15, -75.82)   67.74                80
 12/10/2022   06:45:04   (  -0.00, -75.24) (   0.90, -79.42)  476.15                80
 12/11/2022   06:19:10   (   0.01, -75.25) (  -0.31, -73.80)  165.05                80
 12/12/2022   18:34:20   (  -0.00, -75.27) (  -0.51, -77.46)  249.80                80
 12/13/2022   18:13:47   (  -0.01, -75.28) (   0.74, -71.84)  391.71                80
 12/15/2022   06:28:39   (   0.00, -75.31) (   0.01, -75.44)   14.72                80
 12/16/2022   18:41:10   (   0.00, -75.33) (  -0.85, -79.10)  429.10                80
 12/17/2022   18:20:37   (  -0.00, -75.35) (   0.40, -73.48)  213.04                80