Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 6 8.  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)
 06/08/2024   06:19:12   ( -70.23, -98.89) 06/08/2024   06:20:23  ( -70.21, -98.69)    7.89                71
 06/08/2024   07:09:55   (  70.04,  68.71) 06/08/2024   07:09:51  (  70.05,  68.73)    1.55                 4
 06/08/2024   08:00:35   ( -69.86,-123.70) 06/08/2024   07:59:22  ( -69.88,-123.87)    7.04                73
 06/10/2024   22:36:09   ( -70.11,  17.06) 06/10/2024   22:36:53  ( -70.13,  17.08)    1.96                44
 06/10/2024   23:26:53   (  69.98,-175.43) 06/10/2024   23:26:21  (  69.97,-175.50)    2.97                32
 06/13/2024   14:02:35   (  70.66, -35.37) 06/13/2024   14:03:45  (  70.55, -34.04)   50.74                70
 06/13/2024   14:53:07   ( -70.06, 132.90) 06/13/2024   14:53:22  ( -70.06, 132.87)    1.04                15
 06/13/2024   15:43:50   (  69.93, -59.59) 06/13/2024   15:42:48  (  69.95, -59.64)    2.98                62
 06/16/2024   06:19:22   (  70.10,  81.28) 06/16/2024   06:20:19  (  70.10,  81.20)    3.09                57
 06/16/2024   07:10:04   ( -70.02,-111.28) 06/16/2024   07:09:49  ( -70.00,-111.32)    2.67                15
 06/16/2024   08:00:35   (  69.20,  57.23) 06/16/2024   07:59:27  (  69.28,  55.35)   74.89                68
 06/18/2024   22:36:20   (  70.08,-162.92) 06/18/2024   22:36:46  (  70.05,-162.97)    3.09                26
 06/18/2024   23:27:02   ( -69.99,   4.53) 06/18/2024   23:26:15  ( -70.01,   4.59)    2.90                47
 06/21/2024   14:02:33   ( -70.13, 145.45) 06/21/2024   14:03:45  ( -70.13, 145.40)    2.03                72
 06/21/2024   14:53:17   (  70.01, -47.06) 06/21/2024   14:53:12  (  70.02, -47.12)    2.65                 5
 06/21/2024   15:43:56   ( -69.77, 120.63) 06/21/2024   15:42:44  ( -69.80, 120.21)   16.79                72