Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 14.  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)
 09/16/2024   06:45:20   ( -70.15,-105.04) 09/16/2024   06:45:52  ( -70.15,-104.97)    3.03                32
 09/16/2024   07:36:04   (  70.03,  62.46) 09/16/2024   07:35:19  (  70.04,  62.53)    3.13                45
 09/18/2024   22:11:38   (  70.22,-156.71) 09/18/2024   22:12:48  (  70.23,-156.58)    4.95                70
 09/18/2024   23:02:19   ( -70.08,  10.82) 09/18/2024   23:02:19  ( -70.07,  10.81)    1.70                 0
 09/18/2024   23:53:00   (  69.80, 178.56) 09/18/2024   23:51:48  (  69.85, 178.15)   16.84                72
 09/21/2024   14:28:37   (  70.13, -40.81) 09/21/2024   14:29:14  (  70.14, -40.81)    1.34                37
 09/21/2024   15:19:19   ( -70.04, 126.64) 09/21/2024   15:18:44  ( -70.03, 126.67)    1.51                35
 09/24/2024   05:54:56   ( -70.40, -92.79) 09/24/2024   05:56:08  ( -70.32, -92.28)   20.81                72
 09/24/2024   06:45:36   (  70.07,  75.04) 09/24/2024   06:45:37  (  70.09,  75.03)    3.16                 1
 09/24/2024   07:36:18   ( -69.98,-117.51) 09/24/2024   07:35:07  ( -69.99,-117.48)    1.32                71
 09/26/2024   22:11:51   ( -70.16,  23.35) 09/26/2024   22:12:31  ( -70.16,  23.41)    2.15                40
 09/26/2024   23:02:35   (  70.03,-169.15) 09/26/2024   23:01:58  (  70.04,-169.12)    1.18                37