Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 9.  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)
 08/11/2025   14:03:39   ( -70.27, 145.15) 08/11/2025   14:04:50  ( -70.21, 145.41)   11.74                71
 08/11/2025   14:54:20   (  70.02, -47.17) 08/11/2025   14:54:18  (  70.05, -47.17)    2.82                 2
 08/11/2025   15:45:02   ( -69.90, 120.33) 08/11/2025   15:43:48  ( -69.94, 120.31)    4.10                74
 08/14/2025   06:20:31   ( -70.10, -98.82) 08/14/2025   06:21:22  ( -70.11, -98.86)    1.41                51
 08/14/2025   07:11:15   (  70.02,  68.61) 08/14/2025   07:10:49  (  70.00,  68.64)    2.48                26
 08/14/2025   08:01:41   ( -69.05,-122.67) 08/14/2025   08:00:34  ( -69.07,-124.99)   92.40                67
 08/16/2025   22:37:26   ( -70.10,  16.95) 08/16/2025   22:37:52  ( -70.10,  17.01)    2.19                26
 08/16/2025   23:28:09   (  69.97,-175.54) 08/16/2025   23:27:19  (  69.99,-175.50)    2.56                50
 08/19/2025   14:03:40   (  70.28, -34.88) 08/19/2025   14:04:51  (  70.23, -34.56)   13.64                71
 08/19/2025   14:54:20   ( -70.05, 132.80) 08/19/2025   14:54:22  ( -70.07, 132.85)    3.13                 2
 08/19/2025   15:45:03   (  69.92, -59.69) 08/19/2025   15:43:50  (  69.90, -59.74)    2.62                73
 08/22/2025   06:20:31   (  70.13,  81.13) 08/22/2025   06:21:21  (  70.12,  81.18)    2.33                50
 08/22/2025   07:11:13   ( -70.00,-111.36) 08/22/2025   07:10:51  ( -70.02,-111.33)    2.72                22