Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 10 12.  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)
 10/12/2024   22:12:16   ( -70.18,  23.26) 10/12/2024   22:13:02  ( -70.19,  23.32)    2.95                46
 10/12/2024   23:03:00   (  70.04,-169.22) 10/12/2024   23:02:30  (  70.03,-169.26)    1.76                30
 10/15/2024   13:38:45   (  71.01, -29.63) 10/15/2024   13:39:52  (  70.88, -27.40)   81.98                67
 10/15/2024   14:29:12   ( -70.15, 139.08) 10/15/2024   14:29:34  ( -70.12, 139.10)    2.87                22
 10/15/2024   15:19:56   (  70.01, -53.40) 10/15/2024   15:19:01  (  70.01, -53.41)    0.31                55
 10/18/2024   05:55:25   (  70.18,  87.49) 10/18/2024   05:56:33  (  70.20,  87.46)    2.79                68
 10/18/2024   06:46:07   ( -70.10,-105.07) 10/18/2024   06:46:03  ( -70.10,-105.05)    1.07                 4
 10/18/2024   07:36:46   (  69.71,  62.83) 10/18/2024   07:35:34  (  69.76,  62.13)   27.92                72
 10/20/2024   22:12:20   (  70.17,-156.72) 10/20/2024   22:13:00  (  70.17,-156.69)    1.45                40
 10/20/2024   23:03:01   ( -70.04,  10.80) 10/20/2024   23:02:30  ( -70.07,  10.80)    2.58                31
 10/23/2024   13:38:40   ( -70.85, 150.66) 10/23/2024   13:39:48  ( -70.74, 152.41)   65.20                68
 10/23/2024   14:29:12   (  70.10, -40.83) 10/23/2024   14:29:24  (  70.12, -40.85)    2.38                12
 10/23/2024   15:19:54   ( -70.02, 126.62) 10/23/2024   15:18:54  ( -70.02, 126.64)    1.12                60