Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 20.  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)
 07/22/2024   05:54:43   ( -70.76, -93.45) 07/22/2024   05:55:52  ( -70.69, -91.81)   60.70                69
 07/22/2024   06:45:16   (  70.07,  74.94) 07/22/2024   06:45:28  (  70.09,  74.96)    2.59                12
 07/22/2024   07:35:58   ( -69.97,-117.59) 07/22/2024   07:34:58  ( -69.98,-117.57)    1.08                60
 07/24/2024   22:11:28   ( -70.17,  23.25) 07/24/2024   22:12:29  ( -70.18,  23.33)    2.87                61
 07/24/2024   23:02:11   (  70.01,-169.19) 07/24/2024   23:01:57  (  70.02,-169.26)    2.52                14
 07/24/2024   23:52:44   ( -69.44,  -1.02) 07/24/2024   23:51:34  ( -69.52,  -2.31)   51.05                70
 07/27/2024   14:28:23   ( -70.12, 139.10) 07/27/2024   14:28:57  ( -70.11, 139.13)    1.26                34
 07/27/2024   15:19:07   (  70.02, -53.43) 07/27/2024   15:18:24  (  70.00, -53.38)    2.83                43
 07/30/2024   05:54:40   (  70.41,  87.12) 07/30/2024   05:55:51  (  70.33,  87.70)   23.64                71
 07/30/2024   06:45:18   ( -70.09,-105.06) 07/30/2024   06:45:24  ( -70.06,-105.06)    3.47                 6
 07/30/2024   07:36:01   (  69.94,  62.47) 07/30/2024   07:34:51  (  69.94,  62.43)    1.70                70
 08/01/2024   22:11:29   (  70.13,-156.66) 08/01/2024   22:12:19  (  70.11,-156.71)    2.88                50
 08/01/2024   23:02:11   ( -70.01,  10.83) 08/01/2024   23:01:49  ( -70.00,  10.77)    2.28                22