Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 12.  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)
 08/14/2025   06:20:31   ( -70.10, -98.82) 08/14/2025   06:21:22  ( -70.10, -98.87)    1.59                51
 08/14/2025   07:11:15   (  70.02,  68.62) 08/14/2025   07:10:49  (  70.00,  68.63)    2.12                26
 08/14/2025   08:01:40   ( -69.00,-122.59) 08/14/2025   08:00:34  ( -69.06,-125.00)   95.97                66
 08/16/2025   22:37:26   ( -70.10,  16.95) 08/16/2025   22:37:52  ( -70.09,  17.00)    2.31                26
 08/16/2025   23:28:09   (  69.97,-175.53) 08/16/2025   23:27:19  (  69.98,-175.51)    2.01                50
 08/19/2025   14:03:39   (  70.28, -34.88) 08/19/2025   14:04:50  (  70.22, -34.57)   13.74                71
 08/19/2025   14:54:19   ( -70.05, 132.79) 08/19/2025   14:54:21  ( -70.05, 132.83)    1.45                 2
 08/19/2025   15:45:01   (  69.87, -59.61) 08/19/2025   15:43:49  (  69.89, -59.75)    6.00                72
 08/22/2025   06:20:30   (  70.08,  81.20) 08/22/2025   06:21:21  (  70.11,  81.16)    3.10                51
 08/22/2025   07:11:13   ( -70.01,-111.37) 08/22/2025   07:10:51  ( -70.00,-111.36)    0.78                22
 08/22/2025   08:01:39   (  68.97,  57.44) 08/22/2025   08:00:33  (  69.06,  55.02)   96.88                66
 08/24/2025   22:37:25   (  70.10,-163.05) 08/24/2025   22:37:50  (  70.09,-162.98)    2.82                25
 08/24/2025   23:28:07   ( -69.97,   4.46) 08/24/2025   23:27:20  ( -69.99,   4.51)    2.44                47