Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 10.  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)
 10/11/2025   22:36:52   (  70.12,-162.93) 10/11/2025   22:38:03  (  70.15,-162.95)    3.12                71
 10/11/2025   23:27:33   ( -70.01,   4.55) 10/11/2025   23:27:33  ( -70.03,   4.53)    2.67                 0
 10/12/2025   00:18:15   (  69.76, 172.24) 10/12/2025   00:17:02  (  69.82, 171.87)   15.50                73
 10/14/2025   14:53:43   (  70.09, -47.10) 10/14/2025   14:54:33  (  70.10, -47.13)    1.73                50
 10/14/2025   15:44:24   ( -69.98, 120.38) 10/14/2025   15:44:03  ( -69.99, 120.35)    1.91                21
 10/14/2025   16:34:52   (  68.98, -70.87) 10/14/2025   16:33:46  (  69.00, -73.34)   98.22                66
 10/17/2025   07:10:33   (  70.07,  68.72) 10/17/2025   07:11:01  (  70.09,  68.74)    2.44                28
 10/17/2025   08:01:14   ( -69.96,-123.79) 10/17/2025   08:00:31  ( -69.99,-123.78)    3.02                43
 10/19/2025   22:36:47   ( -70.56,  16.42) 10/19/2025   22:37:58  ( -70.44,  17.48)   41.62                71
 10/19/2025   23:27:24   (  70.06,-175.48) 10/19/2025   23:27:30  (  70.05,-175.43)    1.89                 6
 10/20/2025   00:18:05   ( -69.94,  -7.98) 10/20/2025   00:17:00  ( -69.95,  -7.94)    1.74                65
 10/22/2025   14:53:30   ( -70.14, 132.89) 10/22/2025   14:54:32  ( -70.11, 132.89)    3.18                62
 10/22/2025   15:44:14   (  70.00, -59.60) 10/22/2025   15:43:59  (  69.99, -59.63)    1.57                15
 10/22/2025   16:34:47   ( -69.46, 108.52) 10/22/2025   16:33:36  ( -69.51, 107.33)   46.36                71