Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 3.  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)
 05/04/2025   22:36:34   (  70.20,-162.96) 05/04/2025   22:37:10  (  70.20,-162.96)    0.39                36
 05/04/2025   23:27:16   ( -70.10,   4.51) 05/04/2025   23:26:40  ( -70.09,   4.51)    1.60                36
 05/07/2025   14:02:55   ( -70.65, 144.77) 05/07/2025   14:04:06  ( -70.55, 145.79)   39.32                71
 05/07/2025   14:53:32   (  70.18, -47.17) 05/07/2025   14:53:38  (  70.18, -47.11)    2.19                 6
 05/07/2025   15:44:13   ( -70.08, 120.30) 05/07/2025   15:43:07  ( -70.06, 120.36)    2.53                66
 05/10/2025   06:19:44   ( -70.22, -98.78) 05/10/2025   06:20:38  ( -70.22, -98.81)    1.04                54
 05/10/2025   07:10:28   (  70.11,  68.69) 05/10/2025   07:10:05  (  70.11,  68.68)    0.62                23
 05/10/2025   08:00:56   ( -69.27,-122.75) 05/10/2025   07:59:48  ( -69.29,-124.81)   80.99                68
 05/12/2025   21:46:15   (  71.10,-151.78) 05/12/2025   21:47:22  (  71.00,-149.39)   86.95                67
 05/12/2025   22:36:41   ( -70.16,  17.06) 05/12/2025   22:37:05  ( -70.18,  17.02)    2.73                24
 05/12/2025   23:27:25   (  70.05,-175.46) 05/12/2025   23:26:32  (  70.07,-175.50)    2.30                53
 05/15/2025   14:02:57   (  70.27, -34.66) 05/15/2025   14:04:01  (  70.26, -34.61)    1.96                64
 05/15/2025   14:53:39   ( -70.17, 132.81) 05/15/2025   14:53:31  ( -70.16, 132.87)    2.67                 8
 05/15/2025   15:44:15   (  69.63, -59.08) 05/15/2025   15:43:04  (  69.71, -60.11)   40.59                71