Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 8.  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)
 09/08/2024   06:45:13   (  70.10,  75.05) 09/08/2024   06:45:46  (  70.11,  75.00)    2.67                33
 09/08/2024   07:35:55   ( -70.01,-117.50) 09/08/2024   07:35:16  ( -70.01,-117.52)    0.83                39
 09/10/2024   22:11:33   ( -70.88,  22.27) 09/10/2024   22:12:41  ( -70.78,  24.21)   71.54                68
 09/10/2024   23:02:04   (  70.09,-169.15) 09/10/2024   23:02:19  (  70.07,-169.19)    2.73                15
 09/10/2024   23:52:46   ( -70.00,  -1.70) 09/10/2024   23:51:48  ( -70.02,  -1.63)    3.18                58
 09/13/2024   14:28:11   ( -70.23, 139.13) 09/13/2024   14:29:22  ( -70.20, 139.23)    4.71                71
 09/13/2024   15:18:54   (  70.07, -53.31) 09/13/2024   15:18:49  (  70.09, -53.28)    3.36                 5
 09/13/2024   16:09:34   ( -69.87, 114.30) 09/13/2024   16:08:21  ( -69.88, 114.05)    9.58                73
 09/16/2024   06:44:59   ( -70.13,-104.91) 09/16/2024   06:45:52  ( -70.13,-104.99)    2.87                53
 09/16/2024   07:35:42   (  70.02,  62.56) 09/16/2024   07:35:18  (  70.02,  62.50)    2.56                24
 09/16/2024   08:26:09   ( -69.13,-128.83) 09/16/2024   08:25:02  ( -69.14,-131.06)   88.10                67
 09/18/2024   23:01:47   ( -70.11,  10.92) 09/18/2024   23:02:18  ( -70.12,  10.89)    1.77                31
 09/18/2024   23:52:31   (  70.00, 178.39) 09/18/2024   23:51:45  (  70.00, 178.37)    0.82                46
 09/21/2024   14:27:59   (  70.47, -41.17) 09/21/2024   14:29:10  (  70.39, -40.45)   28.38                71
 09/21/2024   15:18:35   ( -70.07, 126.79) 09/21/2024   15:18:44  ( -70.07, 126.72)    2.61                 9
 09/21/2024   16:09:19   (  69.96, -65.74) 09/21/2024   16:08:11  (  69.94, -65.81)    3.13                68