Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 14.  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   13:14:02   (  70.85, -23.09) 12/14/2024   13:15:11  (  70.74, -21.45)   61.39                69
 12/14/2024   14:04:33   ( -70.16, 145.32) 12/14/2024   14:04:50  ( -70.14, 145.29)    2.61                17
 12/14/2024   14:55:16   (  70.02, -47.15) 12/14/2024   14:54:17  (  70.04, -47.21)    3.08                59
 12/17/2024   05:30:42   (  70.22,  93.69) 12/17/2024   05:31:50  (  70.25,  93.70)    3.49                68
 12/17/2024   06:21:25   ( -70.16, -98.90) 12/17/2024   06:21:20  ( -70.14, -98.82)    3.38                 5
 12/17/2024   07:12:03   (  69.76,  69.02) 12/17/2024   07:10:51  (  69.82,  68.36)   26.27                72
 12/19/2024   21:47:34   (  70.24,-150.55) 12/19/2024   21:48:20  (  70.22,-150.48)    3.60                46
 12/19/2024   22:38:16   ( -70.12,  16.94) 12/19/2024   22:37:50  ( -70.11,  17.01)    2.62                26
 12/22/2024   14:04:24   (  70.16, -34.65) 12/22/2024   14:04:50  (  70.14, -34.70)    2.87                26
 12/22/2024   14:55:06   ( -70.04, 132.85) 12/22/2024   14:54:20  ( -70.04, 132.78)    2.59                46
 12/25/2024   05:30:36   ( -70.54, -86.77) 12/25/2024   05:31:47  ( -70.41, -86.07)   29.49                71
 12/25/2024   06:21:14   (  70.14,  81.16) 12/25/2024   06:21:17  (  70.13,  81.17)    0.80                 3
 12/25/2024   07:11:56   ( -70.02,-111.34) 12/25/2024   07:10:47  ( -70.03,-111.34)    1.06                69
 12/27/2024   21:47:21   ( -70.22,  29.52) 12/27/2024   21:48:18  ( -70.20,  29.52)    1.23                57
 12/27/2024   22:38:04   (  70.08,-162.97) 12/27/2024   22:37:45  (  70.09,-163.01)    1.64                19