Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 9 25.  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)
 10/03/2023   15:56:34   ( -74.50, 108.32) 10/03/2023   15:55:19  ( -74.51, 108.39)    2.76                75
 10/03/2023   16:47:20   (  74.51, -84.40) 10/03/2023   16:46:16  (  74.51, -84.35)    1.40                64
 10/03/2023   17:38:04   ( -74.50,  82.93) 10/03/2023   17:37:18  ( -74.50,  82.87)    1.62                46
 10/03/2023   18:28:50   (  74.52,-109.79) 10/03/2023   18:28:15  (  74.50,-109.87)    2.99                35
 10/03/2023   19:19:35   ( -74.56,  57.41) 10/03/2023   19:19:16  ( -74.54,  57.49)    3.18                19
 10/03/2023   20:10:20   (  74.52,-135.18) 10/03/2023   20:10:13  (  74.54,-135.26)    2.82                 7
 10/03/2023   21:01:05   ( -74.57,  32.02) 10/03/2023   21:01:14  ( -74.58,  32.10)    2.72                 9
 10/03/2023   21:51:51   (  74.58,-160.70) 10/03/2023   21:52:11  (  74.57,-160.64)    1.79                20
 10/03/2023   22:42:35   ( -74.57,   6.63) 10/03/2023   22:43:13  ( -74.57,   6.58)    1.55                38
 10/03/2023   23:33:21   (  74.58, 173.91) 10/03/2023   23:34:10  (  74.57, 173.84)    2.76                49
 10/04/2023   00:24:05   ( -74.58, -18.77) 10/04/2023   00:25:11  ( -74.60, -18.81)    3.17                66
 10/04/2023   01:14:53   (  74.69, 148.25) 10/04/2023   01:16:07  (  74.65, 148.59)   10.63                74