Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 6 1.  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, 165.29) 06/07/2023   00:04:41  (  74.81, 163.39)   55.42                70
 06/07/2023   00:56:42   ( -75.16, -28.33) 06/07/2023   00:55:33  ( -75.16, -28.29)    1.46                69
 06/07/2023   01:47:28   (  75.17, 138.95) 06/07/2023   01:46:33  (  75.14, 138.90)    3.24                55
 06/07/2023   02:38:12   ( -75.16, -53.72) 06/07/2023   02:37:32  ( -75.17, -53.77)    1.63                40
 06/07/2023   03:28:58   (  75.17, 113.56) 06/07/2023   03:28:31  (  75.19, 113.56)    2.13                27
 06/07/2023   04:19:43   ( -75.21, -79.25) 06/07/2023   04:19:30  ( -75.22, -79.11)    3.95                13
 06/07/2023   05:10:28   (  75.18,  88.17) 06/07/2023   05:10:30  (  75.20,  88.08)    3.21                 2
 06/07/2023   06:01:13   ( -75.22,-104.64) 06/07/2023   06:01:29  ( -75.22,-104.59)    1.28                16
 06/07/2023   06:51:59   (  75.23,  62.64) 06/07/2023   06:52:29  (  75.20,  62.60)    3.49                30
 06/07/2023   07:42:43   ( -75.22,-130.02) 06/07/2023   07:43:28  ( -75.22,-130.07)    1.41                45
 06/07/2023   08:33:29   (  75.23,  37.25) 06/07/2023   08:34:27  (  75.25,  37.26)    1.78                58
 06/07/2023   09:24:14   ( -75.27,-155.55) 06/07/2023   09:25:26  ( -75.27,-155.41)    4.05                72
 06/07/2023   10:15:10   (  75.76,  10.25) 06/07/2023   10:16:16  (  75.71,  13.29)   83.39                66