Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 24.  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)
 06/07/2023   00:05:51   (  74.85, 165.24) 06/07/2023   00:04:41  (  74.81, 163.39)   53.71                70
 06/07/2023   00:56:42   ( -75.17, -28.37) 06/07/2023   00:55:33  ( -75.17, -28.26)    2.96                69
 06/07/2023   01:47:27   (  75.14, 139.03) 06/07/2023   01:46:33  (  75.14, 138.90)    3.53                54
 06/07/2023   02:38:12   ( -75.17, -53.76) 06/07/2023   02:37:32  ( -75.17, -53.75)    0.30                40
 06/07/2023   03:28:58   (  75.19, 113.50) 06/07/2023   03:28:31  (  75.19, 113.57)    1.99                27
 06/07/2023   04:19:42   ( -75.18, -79.15) 06/07/2023   04:19:31  ( -75.18, -79.23)    2.37                11
 06/07/2023   05:10:28   (  75.20,  88.11) 06/07/2023   05:10:30  (  75.20,  88.09)    0.61                 2
 06/07/2023   06:01:13   ( -75.23,-104.68) 06/07/2023   06:01:29  ( -75.23,-104.57)    3.12                16
 06/07/2023   06:51:58   (  75.20,  62.72) 06/07/2023   06:52:29  (  75.20,  62.61)    3.17                31
 06/07/2023   07:42:43   ( -75.24,-130.06) 06/07/2023   07:43:28  ( -75.23,-130.05)    0.78                45
 06/07/2023   08:33:29   (  75.26,  37.19) 06/07/2023   08:34:27  (  75.25,  37.27)    2.45                58
 06/07/2023   09:24:13   ( -75.24,-155.45) 06/07/2023   09:25:27  ( -75.23,-155.53)    2.35                74
 06/07/2023   10:15:10   (  75.78,  10.19) 06/07/2023   10:16:16  (  75.71,  13.30)   85.50                66