Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 7.  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)
 12/08/2022   18:35:38   (   0.01, -75.19) (  -0.56, -77.80)  296.68                80
 12/09/2022   18:17:20   (  -0.00, -75.19) (   0.56, -72.73)  281.54                80
 12/11/2022   06:33:00   (  -0.00, -75.20) (   0.45, -77.16)  223.78                80
 12/12/2022   06:12:02   (   0.00, -75.20) (  -0.69, -72.09)  354.78                80
 12/13/2022   18:30:35   (   0.00, -75.21) (  -0.32, -76.57)  155.20                80
 12/14/2022   18:12:17   (   0.00, -75.22) (   0.80, -71.50)  423.86                80
 12/16/2022   06:30:37   (  -0.01, -75.24) (   0.12, -75.94)   79.46                80
 12/18/2022   18:25:32   (   0.00, -75.27) (  -0.02, -75.35)    9.26                80
 12/21/2022   06:22:51   (   0.00, -75.30) (  -0.15, -74.70)   68.57                80