Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 8 19.  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)
 08/19/2024   06:20:07   (  70.13,  81.22) 08/19/2024   06:21:02  (  70.11,  81.15)    3.28                55
 08/19/2024   07:10:49   ( -70.03,-111.31) 08/19/2024   07:10:31  ( -70.05,-111.29)    2.70                18
 08/19/2024   08:01:19   (  69.18,  57.24) 08/19/2024   08:00:11  (  69.23,  55.23)   79.56                68
 08/21/2024   22:37:01   (  70.12,-162.98) 08/21/2024   22:37:32  (  70.13,-162.94)    2.06                31
 08/21/2024   23:27:43   ( -70.02,   4.49) 08/21/2024   23:27:02  ( -70.02,   4.54)    1.85                41
 08/24/2024   14:03:19   ( -70.65, 144.66) 08/24/2024   14:04:29  ( -70.52, 145.87)   46.97                70
 08/24/2024   14:53:54   (  70.08, -47.13) 08/24/2024   14:54:02  (  70.08, -47.12)    1.04                 8
 08/24/2024   15:44:36   ( -69.97, 120.34) 08/24/2024   15:43:32  ( -69.98, 120.36)    1.05                64
 08/27/2024   06:20:03   ( -70.15, -98.77) 08/27/2024   06:21:04  ( -70.14, -98.79)    1.29                61
 08/27/2024   07:10:47   (  70.05,  68.69) 08/27/2024   07:10:31  (  70.03,  68.69)    2.79                16
 08/27/2024   08:01:19   ( -69.42,-123.05) 08/27/2024   08:00:09  ( -69.48,-124.43)   54.12                70
 08/29/2024   22:36:55   ( -70.14,  17.03) 08/29/2024   22:37:30  ( -70.13,  17.09)    2.52                35
 08/29/2024   23:27:38   (  70.00,-175.44) 08/29/2024   23:26:57  (  70.01,-175.44)    2.09                41
 09/01/2024   14:03:11   (  70.53, -35.11) 09/01/2024   14:04:22  (  70.43, -34.21)   35.00                71
 09/01/2024   14:53:46   ( -70.05, 132.96) 09/01/2024   14:53:57  ( -70.06, 132.88)    3.02                11
 09/01/2024   15:44:30   (  69.96, -59.59) 09/01/2024   15:43:24  (  69.94, -59.65)    3.32                66