Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 6 5.  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   (  74.83, 165.28) 06/07/2023   00:04:41  (  74.81, 163.38)   55.38                70
 06/07/2023   00:56:42   ( -75.16, -28.36) 06/07/2023   00:55:33  ( -75.16, -28.31)    1.67                69
 06/07/2023   01:47:28   (  75.17, 138.93) 06/07/2023   01:46:32  (  75.18, 139.03)    3.06                56
 06/07/2023   02:38:12   ( -75.17, -53.75) 06/07/2023   02:37:32  ( -75.16, -53.79)    1.80                40
 06/07/2023   03:28:58   (  75.18, 113.54) 06/07/2023   03:28:31  (  75.19, 113.55)    1.15                27
 06/07/2023   04:19:42   ( -75.17, -79.13) 06/07/2023   04:19:30  ( -75.21, -79.13)    3.81                12
 06/07/2023   05:10:28   (  75.18,  88.15) 06/07/2023   05:10:30  (  75.19,  88.07)    2.61                 2
 06/07/2023   06:01:13   ( -75.23,-104.66) 06/07/2023   06:01:29  ( -75.21,-104.61)    2.12                16
 06/07/2023   06:51:59   (  75.23,  62.62) 06/07/2023   06:52:28  (  75.24,  62.73)    3.24                29
 06/07/2023   07:42:43   ( -75.23,-130.05) 06/07/2023   07:43:28  ( -75.22,-130.10)    2.18                45
 06/07/2023   08:33:29   (  75.24,  37.23) 06/07/2023   08:34:27  (  75.25,  37.25)    0.92                58
 06/07/2023   09:24:13   ( -75.24,-155.44) 06/07/2023   09:25:26  ( -75.26,-155.43)    3.21                73
 06/07/2023   10:15:10   (  75.76,  10.24) 06/07/2023   10:16:16  (  75.71,  13.28)   83.55                66