Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 3.  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)
 07/03/2024   14:28:10   (  70.12, -40.90) 07/03/2024   14:28:47  (  70.11, -40.89)    0.69                37
 07/03/2024   15:18:51   ( -69.98, 126.63) 07/03/2024   15:18:17  ( -70.00, 126.58)    2.45                34
 07/06/2024   05:54:35   ( -70.84, -93.59) 07/06/2024   05:55:43  ( -70.75, -91.72)   69.16                68
 07/06/2024   06:45:07   (  70.09,  74.92) 07/06/2024   06:45:20  (  70.11,  74.97)    2.97                13
 07/06/2024   07:35:48   ( -69.95,-117.55) 07/06/2024   07:34:51  ( -69.94,-117.63)    2.79                57
 07/08/2024   22:11:19   ( -70.19,  23.23) 07/08/2024   22:12:25  ( -70.17,  23.30)    3.02                66
 07/08/2024   23:02:03   (  70.07,-169.29) 07/08/2024   23:01:52  (  70.07,-169.21)    2.92                11
 07/08/2024   23:52:39   ( -69.66,  -1.36) 07/08/2024   23:51:27  ( -69.69,  -2.11)   29.13                72
 07/11/2024   14:28:15   ( -70.12, 139.10) 07/11/2024   14:28:58  ( -70.10, 139.07)    1.90                43
 07/11/2024   15:18:59   (  70.01, -53.42) 07/11/2024   15:18:25  (  70.00, -53.44)    1.47                34
 07/14/2024   05:54:42   (  70.85,  86.39) 07/14/2024   05:55:50  (  70.70,  88.20)   68.30                68
 07/14/2024   06:45:11   ( -70.06,-105.04) 07/14/2024   06:45:30  ( -70.06,-105.12)    2.96                19
 07/14/2024   07:35:55   (  69.95,  62.43) 07/14/2024   07:34:57  (  69.94,  62.37)    2.72                58
 07/16/2024   22:11:26   (  70.17,-156.76) 07/16/2024   22:12:30  (  70.18,-156.69)    2.60                64
 07/16/2024   23:02:08   ( -70.07,  10.72) 07/16/2024   23:02:00  ( -70.08,  10.80)    3.36                 8
 07/16/2024   23:52:44   (  69.54, 178.81) 07/16/2024   23:51:33  (  69.63, 177.82)   39.90                71