Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 4 27.  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)
 04/27/2024   23:01:22   ( -70.05,  10.75) 04/27/2024   23:02:11  ( -70.05,  10.68)    2.68                49
 04/27/2024   23:52:06   (  69.93, 178.23) 04/27/2024   23:51:38  (  69.94, 178.18)    2.08                28
 04/30/2024   14:27:49   (  71.00, -42.32) 04/30/2024   14:28:55  (  70.86, -39.88)   90.08                66
 04/30/2024   15:18:14   ( -70.01, 126.58) 04/30/2024   15:18:38  ( -70.04, 126.55)    3.24                24
 04/30/2024   16:08:58   (  69.90, -65.94) 04/30/2024   16:08:05  (  69.93, -65.96)    3.18                53
 05/03/2024   06:44:25   (  70.10,  74.92) 05/03/2024   06:45:35  (  70.13,  74.92)    3.25                70
 05/03/2024   07:35:07   ( -70.00,-117.61) 05/03/2024   07:35:05  ( -70.02,-117.60)    1.94                 2
 05/03/2024   08:25:47   (  69.68,  50.17) 05/03/2024   08:24:35  (  69.74,  49.66)   20.94                72
 05/05/2024   23:01:18   (  70.11,-169.31) 05/05/2024   23:02:01  (  70.08,-169.25)    3.10                43
 05/05/2024   23:51:59   ( -69.96,  -1.76) 05/05/2024   23:51:31  ( -69.98,  -1.77)    2.59                28
 05/08/2024   14:27:40   ( -70.92, 137.87) 05/08/2024   14:28:47  ( -70.80, 140.06)   80.76                67
 05/08/2024   15:18:09   (  70.03, -53.40) 05/08/2024   15:18:26  (  70.03, -53.44)    1.31                17
 05/08/2024   16:08:51   ( -69.93, 114.06) 05/08/2024   16:07:56  ( -69.93, 114.05)    0.94                55