Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 15.  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   06:45:19   ( -70.11,-104.97) 09/16/2024   06:45:53  ( -70.11,-105.03)    2.00                34
 09/16/2024   07:36:04   (  70.03,  62.45) 09/16/2024   07:35:20  (  70.00,  62.47)    3.16                44
 09/18/2024   22:11:39   (  70.22,-156.71) 09/18/2024   22:12:51  (  70.20,-156.64)    3.29                72
 09/18/2024   23:02:20   ( -70.08,  10.82) 09/18/2024   23:02:21  ( -70.09,  10.83)    0.92                 1
 09/18/2024   23:53:02   (  69.84, 178.49) 09/18/2024   23:51:50  (  69.87, 178.17)   12.48                72
 09/21/2024   14:28:38   (  70.16, -40.87) 09/21/2024   14:29:17  (  70.14, -40.83)    2.86                39
 09/21/2024   15:19:19   ( -70.02, 126.66) 09/21/2024   15:18:47  ( -70.03, 126.65)    0.97                32
 09/24/2024   05:55:00   ( -70.58, -93.07) 09/24/2024   05:56:11  ( -70.44, -92.13)   37.97                71
 09/24/2024   06:45:37   (  70.08,  75.01) 09/24/2024   06:45:42  (  70.11,  75.03)    2.72                 5
 09/24/2024   07:36:19   ( -70.00,-117.54) 09/24/2024   07:35:12  ( -70.00,-117.49)    1.91                67
 09/26/2024   22:11:52   ( -70.15,  23.35) 09/26/2024   22:12:39  ( -70.16,  23.37)    0.68                47
 09/26/2024   23:02:36   (  70.03,-169.15) 09/26/2024   23:02:06  (  70.04,-169.16)    1.15                30