Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 29.  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)    2.65                56
 01/30/2025   07:35:51   ( -70.06,-117.45) 01/30/2025   07:35:36  ( -70.04,-117.52)    3.45                15
 01/30/2025   08:26:22   (  69.23,  51.07) 01/30/2025   08:25:14  (  69.33,  49.15)   76.07                68
 02/01/2025   23:01:55   (  70.14,-169.09) 02/01/2025   23:02:30  (  70.14,-169.11)    1.07                35
 02/01/2025   23:52:36   ( -70.02,  -1.59) 02/01/2025   23:52:00  ( -70.03,  -1.63)    1.90                36
 02/04/2025   14:28:09   ( -70.88, 138.23) 02/04/2025   14:29:17  ( -70.80, 140.11)   69.29                68
 02/04/2025   15:18:41   (  70.12, -53.26) 02/04/2025   15:18:54  (  70.14, -53.22)    2.63                13
 02/04/2025   16:09:22   ( -70.00, 114.24) 02/04/2025   16:08:24  ( -70.03, 114.26)    2.85                58
 02/07/2025   06:44:42   ( -70.19,-104.87) 02/07/2025   06:45:51  ( -70.20,-104.87)    0.82                69
 02/07/2025   07:35:26   (  70.06,  62.64) 02/07/2025   07:35:18  (  70.08,  62.61)    2.42                 8
 02/07/2025   08:26:03   ( -69.74,-129.55) 02/07/2025   08:24:51  ( -69.81,-130.14)   24.11                72
 02/09/2025   23:01:27   ( -70.15,  11.00) 02/09/2025   23:02:14  ( -70.15,  10.97)    1.44                47
 02/09/2025   23:52:11   (  70.02, 178.50) 02/09/2025   23:51:41  (  70.03, 178.45)    2.48                30