Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 7 7.  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)
 07/07/2024   14:02:57   ( -70.50, 144.84) 07/07/2024   14:04:08  ( -70.36, 145.64)   34.00                71
 07/07/2024   14:53:35   (  70.06, -47.16) 07/07/2024   14:53:39  (  70.04, -47.17)    2.46                 4
 07/07/2024   15:44:16   ( -69.93, 120.36) 07/07/2024   15:43:09  ( -69.93, 120.30)    2.31                67
 07/10/2024   06:19:47   ( -70.11, -98.78) 07/10/2024   06:20:43  ( -70.13, -98.80)    2.35                56
 07/10/2024   07:10:32   (  70.05,  68.63) 07/10/2024   07:10:10  (  70.03,  68.70)    2.87                22
 07/10/2024   08:01:00   ( -69.22,-122.83) 07/10/2024   07:59:52  ( -69.26,-124.72)   74.72                68
 07/12/2024   22:36:43   ( -70.10,  17.02) 07/12/2024   22:37:13  ( -70.10,  17.03)    0.49                30
 07/12/2024   23:27:27   (  69.98,-175.50) 07/12/2024   23:26:40  (  70.00,-175.47)    1.82                47
 07/15/2024   14:03:01   (  70.35, -34.92) 07/15/2024   14:04:12  (  70.26, -34.50)   18.72                71
 07/15/2024   14:53:39   ( -70.04, 132.88) 07/15/2024   14:53:44  ( -70.04, 132.82)    2.11                 5
 07/15/2024   15:44:23   (  69.93, -59.64) 07/15/2024   15:43:11  (  69.93, -59.68)    1.46                72
 07/18/2024   06:19:54   (  70.14,  81.18) 07/18/2024   06:20:44  (  70.11,  81.18)    3.15                50
 07/18/2024   07:10:36   ( -70.04,-111.35) 07/18/2024   07:10:14  ( -70.00,-111.34)    3.38                22
 07/18/2024   08:01:02   (  68.97,  57.50) 07/18/2024   07:59:56  (  69.07,  55.04)   98.53                66
 07/20/2024   22:36:50   (  70.10,-162.99) 07/20/2024   22:37:13  (  70.10,-162.95)    1.72                23
 07/20/2024   23:27:32   ( -69.99,   4.49) 07/20/2024   23:26:43  ( -70.00,   4.54)    2.03                49