Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 5.  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)
 08/06/2025   06:20:32   (  70.13,  81.13) 08/06/2025   06:21:16  (  70.11,  81.17)    2.41                44
 08/06/2025   07:11:14   ( -70.02,-111.38) 08/06/2025   07:10:46  ( -70.00,-111.36)    1.67                28
 08/08/2025   21:47:00   ( -71.09,  28.03) 08/08/2025   21:48:06  ( -70.97,  30.67)   96.38                66
 08/08/2025   22:37:26   (  70.07,-163.00) 08/08/2025   22:37:48  (  70.05,-163.06)    3.05                22
 08/08/2025   23:28:08   ( -69.94,   4.50) 08/08/2025   23:27:18  ( -69.94,   4.43)    2.86                50
 08/11/2025   14:03:39   ( -70.24, 145.19) 08/11/2025   14:04:50  ( -70.23, 145.45)    9.74                71
 08/11/2025   14:54:21   (  70.06, -47.22) 08/11/2025   14:54:18  (  70.07, -47.14)    3.18                 3
 08/11/2025   15:45:02   ( -69.88, 120.37) 08/11/2025   15:43:49  ( -69.91, 120.27)    5.28                73
 08/14/2025   06:20:32   ( -70.13, -98.86) 08/14/2025   06:21:22  ( -70.13, -98.82)    1.94                50
 08/14/2025   07:11:15   (  70.00,  68.65) 08/14/2025   07:10:49  (  70.02,  68.67)    3.10                26
 08/14/2025   08:01:41   ( -69.02,-122.63) 08/14/2025   08:00:34  ( -69.09,-124.95)   92.76                67
 08/16/2025   22:37:25   ( -70.07,  17.00) 08/16/2025   22:37:52  ( -70.07,  16.98)    1.05                27
 08/16/2025   23:28:08   (  69.94,-175.50) 08/16/2025   23:27:19  (  69.96,-175.54)    2.65                49
 08/19/2025   14:03:39   (  70.25, -34.83) 08/19/2025   14:04:51  (  70.20, -34.59)   10.50                72