Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 4 3.  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)
 04/03/2024   23:01:21   (  70.08,-169.33) 04/03/2024   23:02:31  (  70.10,-169.28)    3.10                70
 04/03/2024   23:52:03   ( -69.98,  -1.87) 04/03/2024   23:52:01  ( -69.99,  -1.80)    2.76                 2
 04/04/2024   00:42:43   (  69.66, 165.92) 04/04/2024   00:41:31  (  69.71, 165.47)   18.73                72
 04/06/2024   15:18:17   (  70.05, -53.53) 04/06/2024   15:19:00  (  70.05, -53.47)    2.20                43
 04/06/2024   16:08:59   ( -69.95, 113.95) 04/06/2024   16:08:30  ( -69.94, 114.02)    2.78                29
 04/09/2024   06:44:43   ( -70.87,-106.37) 04/09/2024   06:45:50  ( -70.74,-104.22)   80.03                67
 04/09/2024   07:35:12   (  69.98,  62.35) 04/09/2024   07:35:29  (  69.97,  62.30)    1.99                17
 04/09/2024   08:25:54   ( -69.88,-130.18) 04/09/2024   08:24:59  ( -69.87,-130.21)    1.40                55
 04/11/2024   23:01:23   ( -70.08,  10.67) 04/11/2024   23:02:28  ( -70.10,  10.71)    2.79                65
 04/11/2024   23:52:07   (  69.98, 178.13) 04/11/2024   23:51:55  (  69.98, 178.19)    2.37                12
 04/12/2024   00:42:42   ( -69.50, -13.85) 04/12/2024   00:41:31  ( -69.55, -14.76)   36.18                71
 04/14/2024   15:18:18   ( -70.02, 126.52) 04/14/2024   15:18:56  ( -70.02, 126.49)    1.35                38
 04/14/2024   16:09:02   (  69.93, -66.02) 04/14/2024   16:08:23  (  69.90, -66.03)    3.25                39