Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 10 11.  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   ( -73.80, 156.10) 10/18/2023   12:51:05  ( -73.80, 153.03)   95.05                66
 10/18/2023   13:43:09   (  74.40, -38.10) 10/18/2023   13:41:54  (  74.37, -38.23)    5.65                75
 10/18/2023   14:33:53   ( -74.39, 129.24) 10/18/2023   14:32:51  ( -74.41, 129.16)    3.22                62
 10/18/2023   15:24:39   (  74.41, -63.50) 10/18/2023   15:23:52  (  74.40, -63.63)    4.00                47
 10/18/2023   16:15:24   ( -74.45, 103.72) 10/18/2023   16:14:49  ( -74.45, 103.76)    1.41                35
 10/18/2023   17:06:10   (  74.47, -89.02) 10/18/2023   17:05:50  (  74.44, -89.02)    3.50                20
 10/18/2023   17:56:54   ( -74.46,  78.32) 10/18/2023   17:56:47  ( -74.48,  78.37)    2.92                 7
 10/18/2023   18:47:40   (  74.48,-114.42) 10/18/2023   18:47:48  (  74.47,-114.41)    0.52                 8
 10/18/2023   19:38:24   ( -74.47,  52.92) 10/18/2023   19:38:46  ( -74.47,  52.84)    2.59                22
 10/18/2023   20:29:10   (  74.48,-139.81) 10/18/2023   20:29:46  (  74.51,-139.81)    2.48                36
 10/18/2023   21:19:55   ( -74.52,  27.40) 10/18/2023   21:20:44  ( -74.50,  27.44)    2.55                49
 10/18/2023   22:10:40   (  74.49,-165.21) 10/18/2023   22:11:45  (  74.49,-165.33)    3.70                65
 10/18/2023   23:01:27   ( -74.63,   1.74) 10/18/2023   23:02:41  ( -74.58,   2.18)   13.73                74