Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 10 8.  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)
 10/18/2023   12:52:11   ( -73.79, 156.11) 10/18/2023   12:51:05  ( -73.81, 153.06)   94.53                66
 10/18/2023   13:43:09   (  74.40, -38.10) 10/18/2023   13:41:54  (  74.37, -38.21)    4.50                75
 10/18/2023   14:33:54   ( -74.44, 129.12) 10/18/2023   14:32:51  ( -74.42, 129.19)    2.50                63
 10/18/2023   15:24:39   (  74.41, -63.49) 10/18/2023   15:23:52  (  74.41, -63.60)    3.29                47
 10/18/2023   16:15:24   ( -74.45, 103.73) 10/18/2023   16:14:49  ( -74.46, 103.79)    2.35                35
 10/18/2023   17:06:10   (  74.47, -89.02) 10/18/2023   17:05:50  (  74.44, -89.00)    2.48                20
 10/18/2023   17:56:54   ( -74.45,  78.33) 10/18/2023   17:56:48  ( -74.44,  78.26)    2.24                 6
 10/18/2023   18:47:40   (  74.47,-114.41) 10/18/2023   18:47:48  (  74.48,-114.39)    0.89                 8
 10/18/2023   19:38:24   ( -74.46,  52.94) 10/18/2023   19:38:46  ( -74.48,  52.87)    2.79                22
 10/18/2023   20:29:10   (  74.48,-139.81) 10/18/2023   20:29:47  (  74.47,-139.92)    3.61                37
 10/18/2023   21:19:55   ( -74.52,  27.41) 10/18/2023   21:20:44  ( -74.51,  27.47)    1.90                49
 10/18/2023   22:10:40   (  74.49,-165.20) 10/18/2023   22:11:45  (  74.50,-165.31)    3.37                65
 10/18/2023   23:01:28   ( -74.67,   1.63) 10/18/2023   23:02:41  ( -74.60,   2.21)   19.23                73