Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 10 8.  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)
 10/10/2024   05:55:19   ( -70.15, -92.47) 10/10/2024   05:56:22  ( -70.17, -92.55)    3.17                63
 10/10/2024   06:46:04   (  70.07,  74.97) 10/10/2024   06:45:49  (  70.06,  74.94)    1.59                15
 10/10/2024   07:36:36   ( -69.47,-116.82) 10/10/2024   07:35:26  ( -69.55,-118.12)   51.35                70
 10/12/2024   21:21:50   (  71.04,-145.46) 10/12/2024   21:22:56  (  70.95,-143.07)   87.11                66
 10/12/2024   22:12:16   ( -70.13,  23.34) 10/12/2024   22:12:39  ( -70.12,  23.32)    1.06                23
 10/12/2024   23:03:00   (  69.99,-169.15) 10/12/2024   23:02:06  (  70.00,-169.20)    2.13                54
 10/15/2024   13:38:30   (  70.16, -28.26) 10/15/2024   13:39:21  (  70.16, -28.29)    1.27                51
 10/15/2024   14:29:12   ( -70.09, 139.18) 10/15/2024   14:28:50  ( -70.09, 139.25)    2.96                22
 10/15/2024   15:19:39   (  69.05, -52.01) 10/15/2024   15:18:33  (  69.08, -54.48)   98.22                66
 10/18/2024   05:04:45   ( -70.49, -80.31) 10/18/2024   05:05:56  ( -70.40, -79.61)   28.16                71
 10/18/2024   05:55:24   (  70.10,  87.61) 10/18/2024   05:55:26  (  70.10,  87.61)    0.14                 2
 10/18/2024   06:46:05   ( -69.97,-104.87) 10/18/2024   06:44:56  ( -69.98,-104.93)    2.33                69
 10/20/2024   21:21:34   ( -70.15,  36.01) 10/20/2024   21:22:00  ( -70.15,  36.04)    1.16                26
 10/20/2024   22:12:18   (  70.03,-156.50) 10/20/2024   22:11:27  (  70.01,-156.51)    1.85                51