Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 13.  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)
 12/14/2024   13:14:03   (  70.86, -23.11) 12/14/2024   13:15:11  (  70.78, -21.38)   63.73                68
 12/14/2024   14:04:34   ( -70.17, 145.31) 12/14/2024   14:04:50  ( -70.18, 145.35)    2.07                16
 12/14/2024   14:55:17   (  70.03, -47.17) 12/14/2024   14:54:18  (  70.02, -47.23)    2.39                59
 12/17/2024   05:30:42   (  70.23,  93.67) 12/17/2024   05:31:50  (  70.22,  93.65)    1.68                68
 12/17/2024   06:21:24   ( -70.12, -98.83) 12/17/2024   06:21:20  ( -70.11, -98.87)    1.51                 4
 12/17/2024   07:12:02   (  69.71,  69.08) 12/17/2024   07:10:51  (  69.78,  68.32)   30.56                71
 12/19/2024   21:47:33   (  70.19,-150.48) 12/19/2024   21:48:19  (  70.20,-150.49)    0.83                46
 12/19/2024   22:38:15   ( -70.08,  17.01) 12/19/2024   22:37:49  ( -70.09,  16.99)    2.08                26
 12/22/2024   14:04:24   (  70.16, -34.66) 12/22/2024   14:04:47  (  70.17, -34.64)    1.33                23
 12/22/2024   14:55:06   ( -70.05, 132.84) 12/22/2024   14:54:17  ( -70.07, 132.84)    2.78                49
 12/25/2024   05:30:34   ( -70.38, -86.53) 12/25/2024   05:31:46  ( -70.32, -86.19)   14.55                72
 12/25/2024   06:21:15   (  70.14,  81.15) 12/25/2024   06:21:14  (  70.15,  81.21)    1.96                 1
 12/25/2024   07:11:57   ( -70.03,-111.35) 12/25/2024   07:10:44  ( -70.04,-111.31)    2.56                73