Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 4 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)
 04/11/2024   23:01:23   ( -70.08,  10.66) 04/11/2024   23:02:28  ( -70.10,  10.71)    2.52                65
 04/11/2024   23:52:07   (  69.98, 178.13) 04/11/2024   23:51:55  (  69.99, 178.20)    3.05                12
 04/12/2024   00:42:42   ( -69.51, -13.86) 04/12/2024   00:41:31  ( -69.55, -14.77)   35.68                71
 04/14/2024   15:18:18   ( -70.03, 126.52) 04/14/2024   15:18:56  ( -70.03, 126.50)    0.73                38
 04/14/2024   16:09:02   (  69.92, -66.01) 04/14/2024   16:08:23  (  69.92, -66.01)    0.58                39
 04/17/2024   06:44:38   (  70.45,  74.31) 04/17/2024   06:45:49  (  70.31,  75.16)   35.23                71
 04/17/2024   07:35:13   ( -69.98,-117.64) 04/17/2024   07:35:23  ( -69.99,-117.67)    1.80                10
 04/17/2024   08:25:57   (  69.88,  49.83) 04/17/2024   08:24:50  (  69.87,  49.81)    0.67                67
 04/19/2024   23:01:27   (  70.10,-169.36) 04/19/2024   23:02:19  (  70.08,-169.29)    3.56                52
 04/19/2024   23:52:08   ( -69.94,  -1.80) 04/19/2024   23:51:50  ( -69.92,  -1.88)    3.41                18
 04/20/2024   00:42:37   (  69.04, 166.80) 04/20/2024   00:41:30  (  69.08, 164.64)   86.02                67
 04/22/2024   15:18:20   (  70.02, -53.46) 04/22/2024   15:18:44  (  70.04, -53.46)    2.03                24
 04/22/2024   16:09:02   ( -69.91, 114.02) 04/22/2024   16:08:14  ( -69.94, 114.03)    3.14                48