Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 12.  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)
 01/14/2025   05:55:25   ( -71.03, -93.80) 01/14/2025   05:56:32  ( -70.93, -91.49)   84.52                67
 01/14/2025   06:45:54   (  70.14,  74.96) 01/14/2025   06:46:12  (  70.12,  74.95)    2.29                18
 01/14/2025   07:36:35   ( -70.00,-117.52) 01/14/2025   07:35:42  ( -70.01,-117.58)    2.16                53
 01/16/2025   22:12:02   ( -70.44,  22.97) 01/16/2025   22:13:13  ( -70.36,  23.53)   22.71                71
 01/16/2025   23:02:42   (  70.12,-169.22) 01/16/2025   23:02:43  (  70.09,-169.21)    2.60                 1
 01/16/2025   23:53:23   ( -69.98,  -1.70) 01/16/2025   23:52:13  ( -69.99,  -1.73)    1.40                70
 01/19/2025   14:28:46   ( -70.22, 139.11) 01/19/2025   14:29:46  ( -70.20, 139.17)    3.29                60
 01/19/2025   15:19:30   (  70.11, -53.41) 01/19/2025   15:19:13  (  70.09, -53.34)    3.09                17
 01/19/2025   16:10:02   ( -69.50, 114.81) 01/19/2025   16:08:51  ( -69.55, 113.54)   49.98                71
 01/22/2025   06:45:32   ( -70.17,-105.02) 01/22/2025   06:46:15  ( -70.16,-105.00)    0.66                43
 01/22/2025   07:36:16   (  70.05,  62.47) 01/22/2025   07:35:42  (  70.05,  62.48)    0.55                34
 01/24/2025   22:11:54   (  71.10,-158.04) 01/24/2025   22:13:00  (  71.01,-155.48)   92.86                66
 01/24/2025   23:02:19   ( -70.13,  10.85) 01/24/2025   23:02:44  ( -70.15,  10.85)    2.32                25
 01/24/2025   23:53:03   (  70.01, 178.33) 01/24/2025   23:52:11  (  70.03, 178.33)    2.16                52