Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 9 30.  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   15:56:33   ( -74.47, 108.40) 10/03/2023   15:55:19  ( -74.47, 108.28)    3.66                74
 10/03/2023   16:47:20   (  74.52, -84.43) 10/03/2023   16:46:15  (  74.52, -84.32)    3.26                65
 10/03/2023   17:38:04   ( -74.52,  82.88) 10/03/2023   17:37:17  ( -74.51,  82.89)    1.14                47
 10/03/2023   18:28:50   (  74.53,-109.82) 10/03/2023   18:28:14  (  74.51,-109.84)    1.77                36
 10/03/2023   19:19:34   ( -74.53,  57.49) 10/03/2023   19:19:15  ( -74.55,  57.51)    2.38                19
 10/03/2023   20:10:20   (  74.53,-135.21) 10/03/2023   20:10:12  (  74.55,-135.23)    1.89                 8
 10/03/2023   21:01:04   ( -74.53,  32.10) 10/03/2023   21:01:14  ( -74.54,  31.98)    3.57                10
 10/03/2023   21:51:51   (  74.59,-160.73) 10/03/2023   21:52:10  (  74.59,-160.61)    3.56                19
 10/03/2023   22:42:35   ( -74.59,   6.58) 10/03/2023   22:43:12  ( -74.57,   6.60)    1.45                37
 10/03/2023   23:33:21   (  74.59, 173.88) 10/03/2023   23:34:09  (  74.58, 173.87)    1.81                48
 10/04/2023   00:24:05   ( -74.59, -18.81) 10/04/2023   00:25:10  ( -74.61, -18.79)    2.09                65
 10/04/2023   01:14:53   (  74.70, 148.22) 10/04/2023   01:16:06  (  74.66, 148.62)   12.21                73