Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 8 23.  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   20:22:58   ( -74.49,  41.78) 09/03/2023   20:21:45  ( -74.51,  40.91)   25.74                73
 09/03/2023   21:13:47   (  74.65,-151.33) 09/03/2023   21:12:35  (  74.65,-151.41)    2.33                72
 09/03/2023   22:04:32   ( -74.69,  15.88) 09/03/2023   22:03:40  ( -74.69,  15.94)    1.89                52
 09/03/2023   22:55:18   (  74.70,-176.84) 09/03/2023   22:54:33  (  74.69,-176.78)    2.10                45
 09/03/2023   23:46:02   ( -74.69,  -9.51) 09/03/2023   23:45:39  ( -74.68,  -9.57)    2.07                23
 09/04/2023   00:36:48   (  74.70, 157.77) 09/04/2023   00:36:32  (  74.68, 157.71)    2.87                16
 09/04/2023   01:27:33   ( -74.74, -35.02) 09/04/2023   01:27:37  ( -74.72, -34.94)    3.15                 4
 09/04/2023   02:18:18   (  74.70, 132.39) 09/04/2023   02:18:30  (  74.72, 132.33)    2.62                12
 09/04/2023   03:09:03   ( -74.75, -60.41) 09/04/2023   03:09:35  ( -74.76, -60.32)    3.30                32
 09/04/2023   03:59:49   (  74.76, 106.87) 09/04/2023   04:00:28  (  74.76, 106.96)    2.68                39
 09/04/2023   04:50:33   ( -74.75, -85.79) 09/04/2023   04:51:34  ( -74.76, -85.83)    1.49                61
 09/04/2023   05:41:19   (  74.76,  81.49) 09/04/2023   05:42:27  (  74.76,  81.45)    1.19                68
 09/04/2023   06:32:15   ( -75.32,-112.82) 09/04/2023   06:33:21  ( -75.31,-109.64)   89.67                66