Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 22.  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)
 08/23/2024   05:54:59   ( -71.02, -93.86) 08/23/2024   05:56:06  ( -70.92, -91.47)   87.45                67
 08/23/2024   06:45:27   (  70.08,  74.96) 08/23/2024   06:45:46  (  70.11,  74.97)    2.74                19
 08/23/2024   07:36:09   ( -69.98,-117.57) 08/23/2024   07:35:16  ( -70.00,-117.56)    1.55                53
 08/25/2024   22:11:38   ( -70.26,  23.17) 08/25/2024   22:12:49  ( -70.22,  23.37)    8.46                71
 08/25/2024   23:02:20   (  70.05,-169.20) 08/25/2024   23:02:17  (  70.06,-169.22)    1.25                 3
 08/25/2024   23:53:01   ( -69.90,  -1.65) 08/25/2024   23:51:48  ( -69.90,  -1.81)    6.19                73
 08/28/2024   14:28:29   ( -70.14, 139.14) 08/28/2024   14:29:19  ( -70.17, 139.17)    3.28                50
 08/28/2024   15:19:13   (  70.04, -53.40) 08/28/2024   15:18:46  (  70.06, -53.34)    3.05                27
 08/28/2024   16:09:38   ( -69.04, 115.38) 08/28/2024   16:08:32  ( -69.07, 112.96)   96.19                66
 08/31/2024   06:45:21   ( -70.10,-105.01) 08/31/2024   06:45:48  ( -70.10,-105.04)    1.21                27
 08/31/2024   07:36:05   (  70.00,  62.45) 08/31/2024   07:35:15  (  69.99,  62.45)    1.49                50
 09/02/2024   22:11:32   (  70.28,-156.82) 09/02/2024   22:12:43  (  70.23,-156.59)   10.73                71
 09/02/2024   23:02:12   ( -70.07,  10.82) 09/02/2024   23:02:14  ( -70.07,  10.82)    0.27                 2
 09/02/2024   23:52:54   (  69.87, 178.44) 09/02/2024   23:51:42  (  69.90, 178.22)    8.81                72