Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 19.  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)
 09/21/2024   14:28:39   (  70.14, -40.84) 09/21/2024   14:29:19  (  70.15, -40.82)    1.20                40
 09/21/2024   15:19:21   ( -70.06, 126.60) 09/21/2024   15:18:49  ( -70.04, 126.66)    3.16                32
 09/24/2024   05:55:02   ( -70.64, -93.18) 09/24/2024   05:56:12  ( -70.53, -92.02)   44.56                70
 09/24/2024   06:45:38   (  70.09,  75.00) 09/24/2024   06:45:45  (  70.09,  74.99)    0.59                 7
 09/24/2024   07:36:20   ( -70.00,-117.56) 09/24/2024   07:35:15  ( -69.98,-117.53)    3.09                65
 09/26/2024   22:11:53   ( -70.13,  23.39) 09/26/2024   22:12:44  ( -70.13,  23.31)    3.10                51
 09/26/2024   23:02:38   (  70.05,-169.18) 09/26/2024   23:02:11  (  70.02,-169.21)    3.25                27
 09/26/2024   23:53:02   ( -69.01,  -0.36) 09/26/2024   23:51:56  ( -69.09,  -2.83)   98.69                66
 09/29/2024   13:38:22   (  70.76, -29.19) 09/29/2024   13:39:31  (  70.61, -27.72)   56.87                69
 09/29/2024   14:28:53   ( -70.10, 139.18) 09/29/2024   14:29:08  ( -70.12, 139.20)    2.06                15
 09/29/2024   15:19:37   (  69.97, -53.31) 09/29/2024   15:18:35  (  70.00, -53.32)    3.22                62
 10/02/2024   05:55:10   (  70.13,  87.58) 10/02/2024   05:56:02  (  70.15,  87.52)    3.30                52
 10/02/2024   06:45:52   ( -70.05,-104.97) 10/02/2024   06:45:32  ( -70.05,-104.99)    0.87                20