Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 4 2.  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   ( -75.18, -55.33) 04/09/2023   02:43:42  ( -75.15, -57.12)   51.09                70
 04/09/2023   03:35:44   (  75.48, 111.07) 04/09/2023   03:34:32  (  75.45, 111.10)    3.66                72
 04/09/2023   04:26:28   ( -75.47, -81.58) 04/09/2023   04:25:34  ( -75.49, -81.55)    1.59                54
 04/09/2023   05:17:14   (  75.49,  85.67) 04/09/2023   05:16:31  (  75.46,  85.64)    3.62                43
 04/09/2023   06:07:58   ( -75.48,-106.99) 04/09/2023   06:07:33  ( -75.50,-107.00)    1.42                25
 04/09/2023   06:58:44   (  75.50,  60.26) 04/09/2023   06:58:29  (  75.52,  60.33)    2.53                15
 04/09/2023   07:49:28   ( -75.49,-132.39) 04/09/2023   07:49:32  ( -75.51,-132.46)    2.38                 4
 04/09/2023   08:40:14   (  75.51,  34.86) 04/09/2023   08:40:28  (  75.53,  34.87)    1.72                14
 04/09/2023   09:30:59   ( -75.55,-157.94) 04/09/2023   09:31:31  ( -75.52,-157.92)    3.65                32
 04/09/2023   10:21:44   (  75.52,   9.45) 04/09/2023   10:22:27  (  75.54,   9.42)    1.97                43
 04/09/2023   11:12:29   ( -75.56, 176.65) 04/09/2023   11:13:30  ( -75.53, 176.63)    3.48                61
 04/09/2023   12:03:14   (  75.53, -15.95) 04/09/2023   12:04:26  (  75.55, -16.04)    3.03                72