Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 9.  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)
 12/09/2024   05:30:51   ( -70.23, -86.33) 12/09/2024   05:31:54  ( -70.21, -86.37)    2.18                63
 12/09/2024   06:21:35   (  70.14,  81.12) 12/09/2024   06:21:21  (  70.11,  81.13)    3.30                14
 12/09/2024   07:12:08   ( -69.55,-110.69) 12/09/2024   07:10:58  ( -69.61,-111.94)   48.59                70
 12/11/2024   21:47:42   ( -70.21,  29.48) 12/11/2024   21:48:17  ( -70.22,  29.55)    3.17                35
 12/11/2024   22:38:25   (  70.07,-163.00) 12/11/2024   22:37:45  (  70.06,-163.04)    1.87                40
 12/14/2024   13:13:57   (  70.58, -22.65) 12/14/2024   13:15:08  (  70.46, -21.84)   33.15                71
 12/14/2024   14:04:33   ( -70.15, 145.34) 12/14/2024   14:04:42  ( -70.12, 145.31)    2.98                 9
 12/14/2024   14:55:16   (  70.01, -47.14) 12/14/2024   14:54:09  (  70.01, -47.20)    2.55                67
 12/17/2024   05:30:42   (  70.23,  93.69) 12/17/2024   05:31:34  (  70.25,  93.76)    3.70                52
 12/17/2024   06:21:24   ( -70.11, -98.82) 12/17/2024   06:21:05  ( -70.08, -98.84)    3.02                19
 12/17/2024   07:11:52   (  69.18,  69.86) 12/17/2024   07:10:45  (  69.25,  67.67)   86.82                67
 12/19/2024   21:47:32   (  70.15,-150.42) 12/19/2024   21:47:57  (  70.15,-150.46)    1.68                25
 12/19/2024   22:38:14   ( -70.03,  17.08) 12/19/2024   22:37:27  ( -70.04,  17.02)    2.69                47
 12/22/2024   13:13:38   ( -70.23, 157.94) 12/22/2024   13:14:50  ( -70.23, 157.92)    0.86                72
 12/22/2024   14:04:21   (  70.10, -34.55) 12/22/2024   14:04:17  (  70.11, -34.60)    2.75                 4
 12/22/2024   14:55:01   ( -69.87, 133.11) 12/22/2024   14:53:48  ( -69.95, 132.80)   14.80                73