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   ( -70.09, -98.81) 08/14/2025   06:21:22  ( -70.11, -98.85)    2.60                51
 08/14/2025   07:11:15   (  70.01,  68.63) 08/14/2025   07:10:49  (  70.01,  68.65)    0.71                26
 08/14/2025   08:01:41   ( -69.04,-122.65) 08/14/2025   08:00:34  ( -69.07,-124.98)   92.66                67
 08/16/2025   22:37:26   ( -70.09,  16.97) 08/16/2025   22:37:52  ( -70.10,  17.02)    2.35                26
 08/16/2025   23:28:09   (  69.96,-175.52) 08/16/2025   23:27:20  (  69.94,-175.57)    2.48                49
 08/19/2025   14:03:39   (  70.27, -34.86) 08/19/2025   14:04:50  (  70.23, -34.54)   12.46                71
 08/19/2025   14:54:19   ( -70.04, 132.81) 08/19/2025   14:54:22  ( -70.02, 132.78)    2.47                 3
 08/19/2025   15:45:02   (  69.91, -59.68) 08/19/2025   15:43:49  (  69.91, -59.73)    2.05                73
 08/22/2025   06:20:31   (  70.12,  81.15) 08/22/2025   06:21:21  (  70.13,  81.19)    2.20                50
 08/22/2025   07:11:13   ( -69.99,-111.34) 08/22/2025   07:10:52  ( -69.98,-111.40)    2.85                21
 08/22/2025   08:01:40   (  69.01,  57.38) 08/22/2025   08:00:34  (  69.03,  54.98)   95.86                66
 08/24/2025   22:37:25   (  70.08,-163.02) 08/24/2025   22:37:51  (  70.07,-163.01)    1.35                26
 08/24/2025   23:28:07   ( -69.95,   4.49) 08/24/2025   23:27:21  ( -69.97,   4.48)    1.93                46