Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 5 10.  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)
 05/11/2024   06:44:24   ( -70.40,-105.51) 05/11/2024   06:45:35  ( -70.32,-104.84)   26.59                71
 05/11/2024   07:35:03   (  70.02,  62.39) 05/11/2024   07:35:06  (  70.00,  62.35)    3.21                 3
 05/11/2024   08:25:45   ( -69.94,-130.16) 05/11/2024   08:24:35  ( -69.94,-130.10)    2.34                70
 05/13/2024   23:01:11   ( -70.10,  10.75) 05/13/2024   23:02:06  ( -70.12,  10.76)    1.95                55
 05/13/2024   23:51:55   (  69.99, 178.23) 05/13/2024   23:51:33  (  70.01, 178.25)    2.76                22
 05/14/2024   00:42:23   ( -69.16, -13.24) 05/14/2024   00:41:15  ( -69.24, -15.16)   76.37                68
 05/16/2024   15:18:02   ( -70.08, 126.57) 05/16/2024   15:18:32  ( -70.09, 126.59)    1.22                30
 05/16/2024   16:08:46   (  69.97, -65.95) 05/16/2024   16:07:59  (  69.97, -65.92)    1.47                47
 05/19/2024   06:44:15   (  70.32,  74.67) 05/19/2024   06:45:26  (  70.27,  75.12)   17.38                71
 05/19/2024   07:34:54   ( -70.07,-117.63) 05/19/2024   07:34:58  ( -70.06,-117.56)    2.83                 4
 05/19/2024   08:25:38   (  69.96,  49.85) 05/19/2024   08:24:25  (  69.94,  49.92)    3.21                73
 05/21/2024   23:01:03   (  70.11,-169.22) 05/21/2024   23:01:53  (  70.14,-169.19)    3.20                50
 05/21/2024   23:51:45   ( -70.02,  -1.76) 05/21/2024   23:51:23  ( -70.04,  -1.70)    2.80                22