Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 3 11.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 03/11/2023   06:02:19   (  75.83,  73.45) 03/11/2023   06:03:32  (  75.79,  74.08)   17.77                73
 03/11/2023   06:53:13   ( -76.28,-120.77) 03/11/2023   06:54:18  ( -76.23,-117.05)   98.40                65