Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 17.  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)
 08/19/2025   14:03:40   (  70.28, -34.87) 08/19/2025   14:04:51  (  70.22, -34.57)   13.34                71
 08/19/2025   14:54:20   ( -70.05, 132.79) 08/19/2025   14:54:22  ( -70.05, 132.83)    1.43                 2
 08/19/2025   15:45:02   (  69.92, -59.69) 08/19/2025   15:43:49  (  69.90, -59.75)    3.29                73
 08/22/2025   06:20:31   (  70.13,  81.13) 08/22/2025   06:21:21  (  70.12,  81.17)    2.08                50
 08/22/2025   07:11:13   ( -70.01,-111.37) 08/22/2025   07:10:51  ( -70.01,-111.35)    0.66                22
 08/22/2025   08:01:40   (  69.02,  57.37) 08/22/2025   08:00:33  (  69.07,  55.03)   93.29                67
 08/24/2025   22:37:24   (  70.04,-162.96) 08/24/2025   22:37:51  (  70.06,-163.03)    3.58                27
 08/24/2025   23:28:07   ( -69.97,   4.47) 08/24/2025   23:27:21  ( -69.95,   4.45)    2.07                46
 08/27/2025   14:03:39   ( -70.35, 145.03) 08/27/2025   14:04:51  ( -70.25, 145.49)   19.94                72
 08/27/2025   14:54:19   (  70.06, -47.21) 08/27/2025   14:54:20  (  70.03, -47.18)    2.68                 1
 08/27/2025   15:45:01   ( -69.93, 120.30) 08/27/2025   15:43:50  ( -69.93, 120.30)    0.39                71
 08/30/2025   06:20:29   ( -70.10, -98.82) 08/30/2025   06:21:22  ( -70.11, -98.83)    0.85                53
 08/30/2025   07:11:12   (  69.97,  68.69) 08/30/2025   07:10:49  (  69.99,  68.65)    3.17                23