Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 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)
 08/12/2024   14:28:35   ( -70.11, 139.12) 08/12/2024   14:29:10  ( -70.10, 139.08)    2.00                35
 08/12/2024   15:19:19   (  70.01, -53.42) 08/12/2024   15:18:37  (  69.99, -53.42)    1.66                42
 08/15/2024   05:54:54   (  70.56,  86.88) 08/15/2024   05:56:05  (  70.44,  87.83)   37.76                71
 08/15/2024   06:45:29   ( -70.08,-105.06) 08/15/2024   06:45:40  ( -70.06,-105.09)    2.41                11
 08/15/2024   07:36:13   (  69.98,  62.40) 08/15/2024   07:35:07  (  69.95,  62.41)    3.10                66
 08/17/2024   22:11:42   (  70.18,-156.75) 08/17/2024   22:12:39  (  70.17,-156.68)    3.05                57
 08/17/2024   23:02:24   ( -70.07,  10.73) 08/17/2024   23:02:09  ( -70.06,  10.80)    2.86                15
 08/17/2024   23:52:55   (  69.28, 179.20) 08/17/2024   23:51:47  (  69.35, 177.46)   68.61                68
 08/20/2024   14:28:35   (  70.09, -40.83) 08/20/2024   14:29:08  (  70.10, -40.89)    2.52                33
 08/20/2024   15:19:17   ( -69.98, 126.65) 08/20/2024   15:18:38  ( -70.00, 126.60)    3.00                39
 08/23/2024   05:54:53   ( -70.58, -93.13) 08/23/2024   05:56:03  ( -70.46, -92.12)   40.06                70
 08/23/2024   06:45:29   (  70.07,  74.98) 08/23/2024   06:45:35  (  70.07,  74.96)    0.60                 6
 08/23/2024   07:36:11   ( -69.96,-117.53) 08/23/2024   07:35:05  ( -69.97,-117.55)    1.25                66