Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 15.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 08/15/2024   05:54:54   (  70.57,  86.85) 08/15/2024   05:56:04  (  70.44,  87.83)   39.33                70
 08/15/2024   06:45:29   ( -70.10,-105.09) 08/15/2024   06:45:38  ( -70.10,-105.02)    2.67                 9
 08/15/2024   07:36:12   (  69.95,  62.46) 08/15/2024   07:35:06  (  69.95,  62.40)    2.14                66
 08/17/2024   22:11:41   (  70.16,-156.72) 08/17/2024   22:12:37  (  70.15,-156.70)    1.59                56
 08/17/2024   23:02:23   ( -70.06,  10.76) 08/17/2024   23:02:07  ( -70.04,  10.78)    2.36                16
 08/17/2024   23:52:54   (  69.27, 179.23) 08/17/2024   23:51:45  (  69.32, 177.44)   70.64                69
 08/20/2024   14:28:34   (  70.09, -40.83) 08/20/2024   14:29:04  (  70.10, -40.87)    2.02                30
 08/20/2024   15:19:16   ( -69.98, 126.65) 08/20/2024   15:18:34  ( -69.99, 126.61)    1.76                42
 08/23/2024   05:54:48   ( -70.40, -92.84) 08/23/2024   05:56:00  ( -70.31, -92.31)   22.49                72
 08/23/2024   06:45:28   (  70.10,  74.94) 08/23/2024   06:45:29  (  70.08,  75.01)    3.02                 1
 08/23/2024   07:36:10   ( -69.99,-117.58) 08/23/2024   07:34:59  ( -69.98,-117.51)    2.99                71
 08/25/2024   22:11:36   ( -70.17,  23.31) 08/25/2024   22:12:25  ( -70.15,  23.37)    3.27                49
 08/25/2024   23:02:19   (  70.03,-169.16) 08/25/2024   23:01:52  (  70.04,-169.15)    1.15                27
 08/25/2024   23:52:44   ( -69.02,  -0.38) 08/25/2024   23:51:38  ( -69.05,  -2.85)   98.48                66
 08/28/2024   13:37:59   (  70.92, -29.42) 08/28/2024   13:39:06  (  70.84, -27.32)   77.00                67
 08/28/2024   14:28:27   ( -70.07, 139.25) 08/28/2024   14:28:48  ( -70.08, 139.18)    2.78                21
 08/28/2024   15:19:11   (  69.98, -53.30) 08/28/2024   15:18:15  (  69.96, -53.35)    3.05                56