Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 14.  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, -93.79) 01/14/2025   05:56:32  ( -70.93, -91.48)   84.13                67
 01/14/2025   06:45:54   (  70.13,  74.97) 01/14/2025   06:46:12  (  70.12,  74.96)    0.56                18
 01/14/2025   07:36:35   ( -69.99,-117.51) 01/14/2025   07:35:42  ( -70.01,-117.57)    3.17                53
 01/16/2025   22:12:02   ( -70.43,  22.98) 01/16/2025   22:13:13  ( -70.37,  23.54)   21.89                71
 01/16/2025   23:02:42   (  70.10,-169.20) 01/16/2025   23:02:43  (  70.10,-169.20)    0.38                 1
 01/16/2025   23:53:23   ( -69.97,  -1.68) 01/16/2025   23:52:13  ( -69.99,  -1.72)    2.74                70
 01/19/2025   14:28:46   ( -70.21, 139.12) 01/19/2025   14:29:46  ( -70.21, 139.18)    2.02                60
 01/19/2025   15:19:29   (  70.09, -53.39) 01/19/2025   15:19:12  (  70.10, -53.33)    2.22                17
 01/19/2025   16:10:01   ( -69.49, 114.83) 01/19/2025   16:08:51  ( -69.50, 113.47)   52.98                70
 01/22/2025   06:45:32   ( -70.15,-104.99) 01/22/2025   06:46:15  ( -70.17,-104.99)    2.18                43
 01/22/2025   07:36:16   (  70.04,  62.49) 01/22/2025   07:35:42  (  70.06,  62.49)    2.79                34
 01/24/2025   22:11:55   (  71.13,-158.10) 01/24/2025   22:13:00  (  71.03,-155.46)   95.65                65
 01/24/2025   23:02:20   ( -70.16,  10.79) 01/24/2025   23:02:44  ( -70.16,  10.87)    2.80                24
 01/24/2025   23:53:04   (  70.04, 178.28) 01/24/2025   23:52:11  (  70.05, 178.35)    2.64                53
 01/27/2025   14:28:29   (  70.41, -41.12) 01/27/2025   14:29:41  (  70.32, -40.65)   20.18                72
 01/27/2025   15:19:07   ( -70.12, 126.65) 01/27/2025   15:19:13  ( -70.11, 126.68)    1.66                 6
 01/27/2025   16:09:51   (  70.00, -65.86) 01/27/2025   16:08:40  (  69.99, -65.84)    1.45                71