Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 3 27.  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, -55.36) 04/09/2023   02:43:41  ( -75.21, -56.94)   44.86                71
 04/09/2023   03:35:43   (  75.46, 111.16) 04/09/2023   03:34:32  (  75.45, 111.12)    1.19                71
 04/09/2023   04:26:28   ( -75.49, -81.62) 04/09/2023   04:25:34  ( -75.49, -81.51)    3.09                54
 04/09/2023   05:17:13   (  75.47,  85.75) 04/09/2023   05:16:31  (  75.47,  85.66)    2.66                42
 04/09/2023   06:07:58   ( -75.50,-107.03) 04/09/2023   06:07:33  ( -75.50,-106.97)    1.78                25
 04/09/2023   06:58:43   (  75.48,  60.35) 04/09/2023   06:58:30  (  75.48,  60.20)    4.13                13
 04/09/2023   07:49:28   ( -75.51,-132.43) 04/09/2023   07:49:32  ( -75.52,-132.43)    0.87                 4
 04/09/2023   08:40:14   (  75.53,  34.80) 04/09/2023   08:40:28  (  75.53,  34.89)    2.72                14
 04/09/2023   09:30:58   ( -75.52,-157.84) 04/09/2023   09:31:31  ( -75.53,-157.88)    1.53                33
 04/09/2023   10:21:44   (  75.55,   9.39) 04/09/2023   10:22:27  (  75.54,   9.43)    1.27                43
 04/09/2023   11:12:28   ( -75.53, 176.75) 04/09/2023   11:13:30  ( -75.54, 176.66)    2.80                62
 04/09/2023   12:03:14   (  75.56, -16.02) 04/09/2023   12:04:26  (  75.55, -16.02)    0.31                72