Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 28.  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)
 01/30/2025   06:45:10   (  70.17,  75.06) 01/30/2025   06:46:06  (  70.15,  75.01)    2.89                56
 01/30/2025   07:35:51   ( -70.06,-117.45) 01/30/2025   07:35:36  ( -70.04,-117.52)    3.46                15
 01/30/2025   08:26:22   (  69.24,  51.06) 01/30/2025   08:25:14  (  69.32,  49.15)   75.97                68
 02/01/2025   23:01:55   (  70.14,-169.09) 02/01/2025   23:02:30  (  70.15,-169.10)    1.41                35
 02/01/2025   23:52:36   ( -70.02,  -1.59) 02/01/2025   23:52:00  ( -70.04,  -1.63)    2.30                36
 02/04/2025   14:28:09   ( -70.87, 138.24) 02/04/2025   14:29:17  ( -70.81, 140.13)   69.26                68
 02/04/2025   15:18:41   (  70.11, -53.25) 02/04/2025   15:18:55  (  70.09, -53.28)    2.49                14
 02/04/2025   16:09:22   ( -70.00, 114.25) 02/04/2025   16:08:25  ( -69.99, 114.20)    2.39                57
 02/07/2025   06:44:42   ( -70.18,-104.85) 02/07/2025   06:45:52  ( -70.16,-104.92)    3.29                70
 02/07/2025   07:35:27   (  70.10,  62.57) 02/07/2025   07:35:18  (  70.10,  62.64)    2.38                 9
 02/07/2025   08:26:04   ( -69.77,-129.61) 02/07/2025   08:24:51  ( -69.83,-130.11)   20.25                73
 02/09/2025   23:01:28   ( -70.18,  10.95) 02/09/2025   23:02:14  ( -70.18,  11.01)    2.05                46
 02/09/2025   23:52:12   (  70.06, 178.45) 02/09/2025   23:51:41  (  70.06, 178.49)    1.45                31