Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 28.  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, 165.27) 06/07/2023   00:04:41  (  74.81, 163.37)   55.34                70
 06/07/2023   00:56:42   ( -75.16, -28.34) 06/07/2023   00:55:33  ( -75.16, -28.29)    1.34                69
 06/07/2023   01:47:28   (  75.17, 138.92) 06/07/2023   01:46:32  (  75.18, 139.03)    2.99                56
 06/07/2023   02:38:12   ( -75.16, -53.73) 06/07/2023   02:37:32  ( -75.16, -53.78)    1.39                40
 06/07/2023   03:28:58   (  75.18, 113.54) 06/07/2023   03:28:31  (  75.19, 113.55)    0.83                27
 06/07/2023   04:19:43   ( -75.21, -79.25) 06/07/2023   04:19:30  ( -75.21, -79.11)    4.04                13
 06/07/2023   05:10:28   (  75.18,  88.15) 06/07/2023   05:10:30  (  75.19,  88.07)    2.43                 2
 06/07/2023   06:01:13   ( -75.22,-104.64) 06/07/2023   06:01:29  ( -75.22,-104.60)    1.39                16
 06/07/2023   06:51:59   (  75.24,  62.62) 06/07/2023   06:52:28  (  75.24,  62.73)    3.25                29
 06/07/2023   07:42:43   ( -75.22,-130.03) 06/07/2023   07:43:28  ( -75.22,-130.08)    1.33                45
 06/07/2023   08:33:29   (  75.24,  37.23) 06/07/2023   08:34:27  (  75.25,  37.25)    0.78                58
 06/07/2023   09:24:13   ( -75.23,-155.42) 06/07/2023   09:25:27  ( -75.23,-155.56)    3.98                74
 06/07/2023   10:15:10   (  75.76,  10.23) 06/07/2023   10:16:16  (  75.70,  13.28)   83.65                66