Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 12 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)
 01/01/2024   17:51:23   ( -73.95,  80.91) 01/01/2024   17:50:08  ( -73.94,  80.67)    7.61                75
 01/01/2024   18:42:10   (  74.00,-111.91) 01/01/2024   18:41:00  (  74.02,-111.86)    2.52                70
 01/01/2024   19:32:54   ( -74.00,  55.40) 01/01/2024   19:32:05  ( -74.01,  55.36)    1.63                49
 01/01/2024   20:23:40   (  74.01,-137.30) 01/01/2024   20:22:59  (  74.00,-137.41)    3.66                41
 01/01/2024   21:14:25   ( -74.06,  29.89) 01/01/2024   21:14:03  ( -74.04,  29.94)    2.61                22
 01/01/2024   22:05:11   (  74.06,-162.81) 01/01/2024   22:04:56  (  74.07,-162.71)    3.06                15
 01/01/2024   22:55:55   ( -74.07,   4.50) 01/01/2024   22:56:01  ( -74.06,   4.51)    0.22                 6
 01/01/2024   23:46:41   (  74.07, 171.80) 01/01/2024   23:46:54  (  74.09, 171.86)    3.19                13
 01/02/2024   00:37:25   ( -74.07, -20.89) 01/02/2024   00:37:59  ( -74.09, -20.92)    2.20                34
 01/02/2024   01:28:11   (  74.08, 146.41) 01/02/2024   01:28:53  (  74.07, 146.31)    3.27                42
 01/02/2024   02:18:56   ( -74.13, -46.40) 01/02/2024   02:19:57  ( -74.11, -46.34)    2.11                61
 01/02/2024   03:09:42   (  74.13, 120.90) 01/02/2024   03:10:50  (  74.14, 121.01)    3.48                68
 01/02/2024   04:00:38   ( -74.71, -73.31) 01/02/2024   04:01:44  ( -74.66, -70.33)   87.71                66