Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 9 11.  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)
 09/12/2024   06:19:53   ( -70.61, -99.37) 09/12/2024   06:21:04  ( -70.50, -98.29)   42.03                71
 09/12/2024   07:10:29   (  70.07,  68.78) 09/12/2024   07:10:37  (  70.07,  68.73)    1.80                 8
 09/12/2024   08:01:11   ( -69.99,-123.78) 09/12/2024   08:00:06  ( -70.01,-123.72)    3.01                65
 09/14/2024   22:36:35   ( -70.17,  17.12) 09/14/2024   22:37:36  ( -70.15,  17.10)    1.95                61
 09/14/2024   23:27:19   (  70.05,-175.39) 09/14/2024   23:27:03  (  70.04,-175.41)    1.36                16
 09/15/2024   00:17:51   ( -69.44,  -7.16) 09/15/2024   00:16:41  ( -69.49,  -8.54)   53.81                70
 09/17/2024   14:53:24   ( -70.12, 133.00) 09/17/2024   14:54:01  ( -70.10, 132.93)    3.53                37
 09/17/2024   15:44:08   (  70.01, -59.52) 09/17/2024   15:43:28  (  69.98, -59.58)    3.45                40
 09/20/2024   06:19:37   (  70.55,  80.80) 09/20/2024   06:20:48  (  70.45,  81.72)   36.26                71
 09/20/2024   07:10:12   ( -70.10,-111.17) 09/20/2024   07:10:22  ( -70.12,-111.12)    3.07                10
 09/20/2024   08:00:56   (  69.99,  56.31) 09/20/2024   07:59:49  (  70.01,  56.36)    2.63                67
 09/22/2024   22:36:18   (  70.14,-162.75) 09/22/2024   22:37:14  (  70.17,-162.77)    3.01                56
 09/22/2024   23:27:00   ( -70.05,   4.70) 09/22/2024   23:26:44  ( -70.06,   4.71)    0.64                16
 09/23/2024   00:17:31   (  69.26, 173.19) 09/23/2024   00:16:23  (  69.28, 171.28)   75.05                68