Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 5 24.  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)
 05/24/2024   15:17:58   (  70.08, -53.39) 05/24/2024   15:18:26  (  70.07, -53.42)    1.11                28
 05/24/2024   16:08:39   ( -69.95, 114.13) 05/24/2024   16:07:56  ( -69.96, 114.06)    3.23                43
 05/27/2024   06:44:13   ( -70.19,-105.11) 05/27/2024   06:45:24  ( -70.20,-104.99)    4.80                71
 05/27/2024   07:34:57   (  70.06,  62.40) 05/27/2024   07:34:52  (  70.04,  62.42)    2.08                 5
 05/27/2024   08:25:36   ( -69.82,-129.93) 05/27/2024   08:24:23  ( -69.88,-130.18)   11.41                73
 05/29/2024   23:01:12   ( -70.13,  10.74) 05/29/2024   23:01:51  ( -70.13,  10.79)    1.89                39
 05/29/2024   23:51:56   (  70.00, 178.24) 05/29/2024   23:51:18  (  70.02, 178.28)    2.42                38
 06/01/2024   14:27:33   (  70.38, -41.21) 06/01/2024   14:28:45  (  70.28, -40.74)   20.62                72
 06/01/2024   15:18:11   ( -70.08, 126.57) 06/01/2024   15:18:17  ( -70.06, 126.58)    2.63                 6
 06/01/2024   16:08:55   (  69.95, -65.93) 06/01/2024   16:07:44  (  69.95, -65.94)    0.90                71
 06/04/2024   06:44:28   (  70.13,  74.93) 06/04/2024   06:45:12  (  70.10,  74.90)    3.29                44
 06/04/2024   07:35:10   ( -70.04,-117.62) 06/04/2024   07:34:41  ( -70.05,-117.54)    2.87                29
 06/06/2024   22:10:51   ( -70.70,  22.48) 06/06/2024   22:12:00  ( -70.60,  23.88)   52.70                69
 06/06/2024   23:01:26   (  70.11,-169.27) 06/06/2024   23:01:34  (  70.10,-169.21)    2.60                 8
 06/06/2024   23:52:07   ( -69.97,  -1.74) 06/06/2024   23:51:04  ( -69.99,  -1.72)    2.86                63