Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-20
TLE Epoch: 2022 12 14.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-20) NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2022   19:29:27   ( -76.40,  50.02) 12/28/2022   19:28:13  ( -76.39,  50.04)    1.28                74
 12/28/2022   20:19:24   (  74.23,-136.11) 12/28/2022   20:18:13  (  74.23,-136.10)    0.23                71
 12/28/2022   21:09:14   ( -71.86,  36.36) 12/28/2022   21:08:10  ( -71.87,  36.36)    0.47                64