Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 30.  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)
 04/01/2024   06:44:42   (  70.99,  73.43) 04/01/2024   06:45:48  (  70.89,  76.03)   94.80                66
 04/01/2024   07:35:07   ( -69.99,-117.66) 04/01/2024   07:35:32  ( -70.02,-117.63)    3.08                25
 04/01/2024   08:25:51   (  69.89,  49.81) 04/01/2024   08:24:59  (  69.91,  49.86)    3.44                52
 04/03/2024   23:01:21   (  70.07,-169.32) 04/03/2024   23:02:31  (  70.08,-169.30)    1.84                70
 04/03/2024   23:52:03   ( -69.97,  -1.85) 04/03/2024   23:52:01  ( -69.98,  -1.81)    2.00                 2
 04/04/2024   00:42:43   (  69.65, 165.93) 04/04/2024   00:41:31  (  69.70, 165.45)   19.63                72
 04/06/2024   15:18:16   (  70.06, -53.53) 04/06/2024   15:18:58  (  70.05, -53.47)    2.86                42
 04/06/2024   16:08:58   ( -69.95, 113.94) 04/06/2024   16:08:28  ( -69.94, 114.02)    3.08                30
 04/09/2024   06:44:40   ( -70.79,-106.23) 04/09/2024   06:45:48  ( -70.68,-104.30)   71.84                68
 04/09/2024   07:35:11   (  70.01,  62.31) 04/09/2024   07:35:25  (  70.01,  62.37)    2.35                14
 04/09/2024   08:25:53   ( -69.90,-130.21) 04/09/2024   08:24:55  ( -69.92,-130.13)    3.21                58
 04/11/2024   23:01:22   ( -70.07,  10.68) 04/11/2024   23:02:25  ( -70.06,  10.68)    1.48                63
 04/11/2024   23:52:05   (  69.93, 178.21) 04/11/2024   23:51:52  (  69.94, 178.15)    2.66                13
 04/12/2024   00:42:39   ( -69.39, -13.68) 04/12/2024   00:41:29  ( -69.45, -14.87)   47.04                70