Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 23.  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)
 09/24/2024   05:55:02   ( -70.63, -93.17) 09/24/2024   05:56:12  ( -70.53, -92.02)   44.08                70
 09/24/2024   06:45:38   (  70.08,  75.02) 09/24/2024   06:45:45  (  70.10,  75.00)    2.31                 7
 09/24/2024   07:36:20   ( -70.00,-117.55) 09/24/2024   07:35:15  ( -69.98,-117.53)    2.11                65
 09/26/2024   22:11:54   ( -70.16,  23.33) 09/26/2024   22:12:44  ( -70.14,  23.32)    2.35                50
 09/26/2024   23:02:38   (  70.03,-169.16) 09/26/2024   23:02:11  (  70.03,-169.19)    1.39                27
 09/26/2024   23:53:03   ( -69.05,  -0.42) 09/26/2024   23:51:56  ( -69.10,  -2.83)   95.89                67
 09/29/2024   13:38:22   (  70.73, -29.14) 09/29/2024   13:39:31  (  70.63, -27.69)   54.68                69
 09/29/2024   14:28:53   ( -70.08, 139.22) 09/29/2024   14:29:09  ( -70.08, 139.14)    3.12                16
 09/29/2024   15:19:38   (  69.99, -53.35) 09/29/2024   15:18:36  (  69.97, -53.38)    3.07                62
 10/02/2024   05:55:12   (  70.19,  87.49) 10/02/2024   05:56:02  (  70.18,  87.56)    2.87                50
 10/02/2024   06:45:53   ( -70.05,-104.99) 10/02/2024   06:45:32  ( -70.07,-104.96)    2.42                21
 10/02/2024   07:36:21   (  69.07,  63.75) 10/02/2024   07:35:14  (  69.13,  61.40)   93.48                67
 10/04/2024   21:21:39   ( -70.94,  34.73) 10/04/2024   21:22:46  ( -70.83,  36.80)   76.35                67
 10/04/2024   22:12:10   (  70.13,-156.67) 10/04/2024   22:12:24  (  70.12,-156.62)    2.27                14
 10/04/2024   23:02:51   ( -69.99,  10.86) 10/04/2024   23:01:54  ( -70.01,  10.86)    1.63                57