Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 7 18.  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)
 07/18/2024   06:19:54   (  70.14,  81.17) 07/18/2024   06:20:51  (  70.12,  81.16)    2.89                57
 07/18/2024   07:10:36   ( -70.05,-111.37) 07/18/2024   07:10:20  ( -70.05,-111.30)    2.77                16
 07/18/2024   08:01:07   (  69.25,  57.12) 07/18/2024   07:59:59  (  69.30,  55.31)   71.49                68
 07/20/2024   22:36:48   (  70.07,-162.94) 07/20/2024   22:37:22  (  70.09,-163.01)    3.21                34
 07/20/2024   23:27:30   ( -69.97,   4.52) 07/20/2024   23:26:52  ( -69.97,   4.46)    2.57                38
 07/23/2024   14:03:09   ( -70.64, 144.63) 07/23/2024   14:04:19  ( -70.54, 145.88)   47.76                70
 07/23/2024   14:53:44   (  70.06, -47.15) 07/23/2024   14:53:53  (  70.06, -47.17)    0.87                 9
 07/23/2024   15:44:26   ( -69.96, 120.32) 07/23/2024   15:43:23  ( -69.94, 120.30)    2.04                63
 07/26/2024   06:19:55   ( -70.11, -98.77) 07/26/2024   06:20:56  ( -70.14, -98.82)    3.17                61
 07/26/2024   07:10:39   (  70.01,  68.69) 07/26/2024   07:10:23  (  70.03,  68.68)    2.25                16
 07/26/2024   08:01:11   ( -69.38,-123.05) 07/26/2024   08:00:01  ( -69.48,-124.45)   55.83                70
 07/28/2024   22:36:51   ( -70.13,  16.99) 07/28/2024   22:37:25  ( -70.12,  17.04)    2.25                34
 07/28/2024   23:27:34   (  69.98,-175.48) 07/28/2024   23:26:53  (  69.96,-175.54)    3.47                41
 07/31/2024   14:03:08   (  70.48, -35.11) 07/31/2024   14:04:19  (  70.38, -34.32)   31.22                71
 07/31/2024   14:53:44   ( -70.05, 132.88) 07/31/2024   14:53:53  ( -70.05, 132.84)    1.80                 9
 07/31/2024   15:44:28   (  69.96, -59.67) 07/31/2024   15:43:20  (  69.94, -59.67)    1.79                68