Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 8 30.  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)
 09/03/2023   20:22:59   ( -74.52,  41.71) 09/03/2023   20:21:46  ( -74.48,  40.85)   25.84                73
 09/03/2023   21:13:47   (  74.66,-151.38) 09/03/2023   21:12:34  (  74.68,-151.32)    2.10                73
 09/03/2023   22:04:31   ( -74.67,  15.93) 09/03/2023   22:03:40  ( -74.66,  15.87)    1.81                51
 09/03/2023   22:55:17   (  74.67,-176.76) 09/03/2023   22:54:33  (  74.67,-176.83)    2.06                44
 09/03/2023   23:46:02   ( -74.72,  -9.58) 09/03/2023   23:45:38  ( -74.71,  -9.50)    2.63                24
 09/04/2023   00:36:48   (  74.72, 157.72) 09/04/2023   00:36:31  (  74.71, 157.79)    2.32                17
 09/04/2023   01:27:32   ( -74.72, -34.96) 09/04/2023   01:27:37  ( -74.70, -35.01)    2.67                 5
 09/04/2023   02:18:18   (  74.72, 132.34) 09/04/2023   02:18:30  (  74.71, 132.28)    2.60                12
 09/04/2023   03:09:02   ( -74.72, -60.35) 09/04/2023   03:09:35  ( -74.74, -60.39)    2.22                33
 09/04/2023   03:59:48   (  74.73, 106.95) 09/04/2023   04:00:28  (  74.75, 106.91)    2.53                40
 09/04/2023   04:50:33   ( -74.78, -85.86) 09/04/2023   04:51:33  ( -74.78, -85.76)    3.14                60
 09/04/2023   05:41:19   (  74.78,  81.44) 09/04/2023   05:42:26  (  74.79,  81.53)    3.02                67
 09/04/2023   06:32:15   ( -75.35,-112.90) 09/04/2023   06:33:21  ( -75.29,-109.71)   90.08                66