Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2024   23:51:19   ( -69.98,  -1.76) 01/30/2024   23:52:18  ( -69.96,  -1.79)    2.07                59
 01/31/2024   00:42:03   (  69.85, 165.74) 01/31/2024   00:41:45  (  69.86, 165.72)    1.54                18
 01/31/2024   01:32:34   ( -69.19, -25.99) 01/31/2024   01:31:24  ( -69.25, -27.47)   58.81                70
 02/02/2024   16:08:11   ( -69.97, 114.03) 02/02/2024   16:08:48  ( -69.96, 114.09)    2.43                37
 02/02/2024   16:58:55   (  69.85, -78.48) 02/02/2024   16:58:15  (  69.86, -78.41)    2.99                40
 02/05/2024   07:34:31   (  70.59,  61.54) 02/05/2024   07:35:40  (  70.48,  63.08)   58.49                69
 02/05/2024   08:25:02   ( -69.93,-130.11) 02/05/2024   08:25:18  ( -69.93,-130.08)    1.31                16
 02/05/2024   09:15:46   (  69.81,  37.38) 02/05/2024   09:14:45  (  69.83,  37.42)    2.82                61
 02/07/2024   23:51:11   (  69.98, 178.28) 02/07/2024   23:52:18  (  69.98, 178.23)    2.04                67
 02/08/2024   00:41:52   ( -69.89, -14.27) 02/08/2024   00:41:47  ( -69.87, -14.29)    3.11                 5
 02/08/2024   01:32:30   (  69.46, 153.68) 02/08/2024   01:31:18  (  69.54, 152.91)   31.32                72
 02/10/2024   16:08:01   (  69.96, -65.89) 02/10/2024   16:08:45  (  69.99, -65.88)    3.06                44
 02/10/2024   16:58:43   ( -69.87, 101.56) 02/10/2024   16:58:15  ( -69.88, 101.60)    1.95                28