Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 3 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)
 04/09/2023   02:44:52   ( -75.19, -55.34) 04/09/2023   02:43:41  ( -75.20, -56.97)   46.38                71
 04/09/2023   03:35:43   (  75.45, 111.19) 04/09/2023   03:34:32  (  75.45, 111.09)    2.74                71
 04/09/2023   04:26:28   ( -75.48, -81.60) 04/09/2023   04:25:34  ( -75.48, -81.54)    1.62                54
 04/09/2023   05:17:14   (  75.50,  85.64) 04/09/2023   05:16:30  (  75.50,  85.79)    4.05                44
 04/09/2023   06:07:58   ( -75.49,-107.00) 04/09/2023   06:07:33  ( -75.50,-107.00)    0.75                25
 04/09/2023   06:58:44   (  75.51,  60.23) 04/09/2023   06:58:29  (  75.51,  60.33)    2.57                15
 04/09/2023   07:49:28   ( -75.50,-132.41) 04/09/2023   07:49:32  ( -75.51,-132.46)    1.61                 4
 04/09/2023   08:40:14   (  75.52,  34.83) 04/09/2023   08:40:28  (  75.53,  34.87)    1.10                14
 04/09/2023   09:30:58   ( -75.51,-157.81) 04/09/2023   09:31:31  ( -75.52,-157.91)    2.94                33
 04/09/2023   10:21:44   (  75.53,   9.42) 04/09/2023   10:22:27  (  75.54,   9.41)    0.40                43
 04/09/2023   11:12:29   ( -75.57, 176.64) 04/09/2023   11:13:30  ( -75.53, 176.63)    4.09                61
 04/09/2023   12:03:14   (  75.54, -15.98) 04/09/2023   12:04:26  (  75.55, -16.05)    1.85                72