Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 9 1.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/01/2024   14:03:19   (  70.93, -35.77) 09/01/2024   14:04:26  (  70.82, -33.68)   77.18                67
 09/01/2024   14:53:47   ( -70.10, 132.88) 09/01/2024   14:54:07  ( -70.11, 132.90)    0.72                20
 09/01/2024   15:44:31   (  69.99, -59.65) 09/01/2024   15:43:34  (  70.01, -59.60)    2.22                57
 09/04/2024   06:19:58   (  70.22,  81.17) 09/04/2024   06:21:09  (  70.21,  81.29)    4.70                71
 09/04/2024   07:10:39   ( -70.07,-111.29) 09/04/2024   07:10:40  ( -70.05,-111.32)    3.21                 1
 09/04/2024   08:01:21   (  69.86,  56.34) 09/04/2024   08:00:08  (  69.89,  56.11)    9.52                73
 09/06/2024   22:36:49   (  70.16,-162.95) 09/06/2024   22:37:41  (  70.14,-162.94)    2.66                52
 09/06/2024   23:27:30   ( -70.01,   4.59) 09/06/2024   23:27:11  ( -70.03,   4.54)    2.89                19
 09/07/2024   00:17:59   (  69.11, 173.22) 09/07/2024   00:16:52  (  69.15, 170.99)   88.45                67
 09/09/2024   14:53:40   (  70.12, -47.10) 09/09/2024   14:54:11  (  70.11, -47.10)    1.25                31
 09/09/2024   15:44:22   ( -70.03, 120.37) 09/09/2024   15:43:41  ( -70.01, 120.39)    2.18                41
 09/12/2024   06:19:55   ( -70.68, -99.49) 09/12/2024   06:21:05  ( -70.57, -98.19)   49.61                70
 09/12/2024   07:10:30   (  70.10,  68.73) 09/12/2024   07:10:39  (  70.07,  68.74)    3.27                 9
 09/12/2024   08:01:11   ( -69.95,-123.73) 09/12/2024   08:00:09  ( -69.97,-123.78)    2.83                62
 09/14/2024   22:36:36   ( -70.15,  17.14) 09/14/2024   22:37:40  ( -70.14,  17.08)    2.43                64
 09/14/2024   23:27:20   (  70.05,-175.40) 09/14/2024   23:27:07  (  70.03,-175.44)    3.28                13
 09/15/2024   00:17:54   ( -69.53,  -7.30) 09/15/2024   00:16:43  ( -69.60,  -8.41)   43.42                71