Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 9 4.  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)
 09/04/2024   06:19:58   (  70.21,  81.19) 09/04/2024   06:21:10  (  70.17,  81.22)    4.56                72
 09/04/2024   07:10:39   ( -70.06,-111.27) 09/04/2024   07:10:40  ( -70.06,-111.30)    1.56                 1
 09/04/2024   08:01:21   (  69.85,  56.36) 09/04/2024   08:00:08  (  69.90,  56.12)   11.03                73
 09/06/2024   22:36:49   (  70.16,-162.94) 09/06/2024   22:37:40  (  70.17,-162.89)    2.27                51
 09/06/2024   23:27:31   ( -70.07,   4.52) 09/06/2024   23:27:10  ( -70.06,   4.58)    2.49                21
 09/07/2024   00:17:58   (  69.05, 173.30) 09/07/2024   00:16:52  (  69.13, 170.96)   93.37                66
 09/09/2024   14:53:39   (  70.13, -47.11) 09/09/2024   14:54:08  (  70.14, -47.05)    2.39                29
 09/09/2024   15:44:21   ( -70.04, 120.35) 09/09/2024   15:43:38  ( -70.03, 120.43)    3.08                43
 09/12/2024   06:19:53   ( -70.60, -99.37) 09/12/2024   06:21:03  ( -70.52, -98.25)   42.51                70
 09/12/2024   07:10:29   (  70.08,  68.77) 09/12/2024   07:10:36  (  70.08,  68.75)    0.48                 7
 09/12/2024   08:01:11   ( -69.99,-123.77) 09/12/2024   08:00:06  ( -69.97,-123.76)    1.54                65
 09/14/2024   22:36:35   ( -70.16,  17.14) 09/14/2024   22:37:35  ( -70.16,  17.12)    0.68                60
 09/14/2024   23:27:19   (  70.05,-175.39) 09/14/2024   23:27:02  (  70.04,-175.40)    1.24                17
 09/15/2024   00:17:50   ( -69.38,  -7.08) 09/15/2024   00:16:41  ( -69.44,  -8.59)   59.75                69
 09/17/2024   14:53:25   ( -70.15, 132.94) 09/17/2024   14:53:59  ( -70.15, 133.01)    2.60                34
 09/17/2024   15:44:08   (  70.00, -59.51) 09/17/2024   15:43:26  (  70.03, -59.51)    3.37                42