Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 11.  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)
 09/13/2024   14:28:11   ( -70.21, 139.15) 09/13/2024   14:29:23  ( -70.18, 139.20)    3.78                72
 09/13/2024   15:18:55   (  70.10, -53.36) 09/13/2024   15:18:50  (  70.08, -53.31)    3.28                 5
 09/13/2024   16:09:34   ( -69.86, 114.32) 09/13/2024   16:08:21  ( -69.91, 114.09)   10.88                73
 09/16/2024   06:44:59   ( -70.15,-104.95) 09/16/2024   06:45:52  ( -70.14,-104.98)    2.00                53
 09/16/2024   07:35:43   (  70.04,  62.53) 09/16/2024   07:35:19  (  70.03,  62.50)    1.64                24
 09/16/2024   08:26:10   ( -69.16,-128.87) 09/16/2024   08:25:02  ( -69.21,-130.98)   83.67                68
 09/18/2024   23:01:48   ( -70.12,  10.90) 09/18/2024   23:02:20  ( -70.11,  10.87)    1.60                32
 09/18/2024   23:52:32   (  70.01, 178.38) 09/18/2024   23:51:47  (  69.99, 178.35)    1.72                45
 09/21/2024   14:28:01   (  70.52, -41.24) 09/21/2024   14:29:12  (  70.42, -40.41)   32.42                71
 09/21/2024   15:18:37   ( -70.11, 126.71) 09/21/2024   15:18:46  ( -70.10, 126.75)    2.06                 9
 09/21/2024   16:09:21   (  70.00, -65.81) 09/21/2024   16:08:13  (  69.98, -65.77)    2.90                68
 09/24/2024   06:44:43   (  70.17,  75.11) 09/24/2024   06:45:41  (  70.15,  75.10)    1.94                58
 09/24/2024   07:35:24   ( -70.03,-117.35) 09/24/2024   07:35:11  ( -70.05,-117.41)    3.25                13
 09/24/2024   08:25:57   (  69.34,  50.98) 09/24/2024   08:24:48  (  69.38,  49.31)   65.51                69