Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 4 30.  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)
 05/01/2024   22:36:00   (  70.14,-163.04) 05/01/2024   22:37:06  (  70.16,-163.00)    2.67                66
 05/01/2024   23:26:42   ( -70.05,   4.42) 05/01/2024   23:26:36  ( -70.05,   4.46)    1.93                 6
 05/02/2024   00:17:20   (  69.62, 172.37) 05/02/2024   00:16:08  (  69.67, 171.58)   30.80                72
 05/04/2024   14:52:53   (  70.12, -47.23) 05/04/2024   14:53:32  (  70.11, -47.19)    1.81                39
 05/04/2024   15:43:34   ( -69.98, 120.31) 05/04/2024   15:43:02  ( -70.00, 120.28)    2.61                32
 05/07/2024   06:19:11   ( -70.74, -99.74) 05/07/2024   06:20:20  ( -70.68, -98.11)   60.23                69
 05/07/2024   07:09:44   (  70.06,  68.65) 05/07/2024   07:09:56  (  70.08,  68.65)    1.92                12
 05/07/2024   08:00:26   ( -69.97,-123.88) 05/07/2024   07:59:26  ( -69.97,-123.87)    0.58                60
 05/09/2024   22:35:53   ( -70.17,  16.96) 05/09/2024   22:36:53  ( -70.17,  17.04)    3.04                60
 05/09/2024   23:26:36   (  70.01,-175.48) 05/09/2024   23:26:21  (  70.01,-175.55)    2.58                15
 05/10/2024   00:17:09   ( -69.44,  -7.32) 05/10/2024   00:15:59  ( -69.46,  -8.67)   52.70                70
 05/12/2024   14:52:45   ( -70.13, 132.81) 05/12/2024   14:53:17  ( -70.13, 132.87)    2.31                32
 05/12/2024   15:43:29   (  70.03, -59.72) 05/12/2024   15:42:44  (  70.01, -59.65)    3.35                45