Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 23.  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)
 03/24/2024   07:35:02   (  69.98,  62.37) 03/24/2024   07:35:37  (  69.97,  62.30)    2.97                35
 03/24/2024   08:25:44   ( -69.88,-130.17) 03/24/2024   08:25:06  ( -69.91,-130.15)    3.33                38
 03/26/2024   23:01:21   ( -70.37,  10.22) 03/26/2024   23:02:33  ( -70.25,  10.95)   30.29                72
 03/26/2024   23:51:59   (  69.95, 178.18) 03/26/2024   23:52:04  (  69.92, 178.12)    3.44                 5
 03/27/2024   00:42:41   ( -69.85, -14.35) 03/27/2024   00:41:33  ( -69.87, -14.32)    2.70                68
 03/29/2024   15:18:12   ( -70.04, 126.50) 03/29/2024   15:19:02  ( -70.05, 126.55)    2.57                50
 03/29/2024   16:08:56   (  69.93, -66.03) 03/29/2024   16:08:29  (  69.94, -65.96)    2.55                27
 03/29/2024   16:59:21   ( -68.93, 102.73) 03/29/2024   16:58:14  ( -69.01, 100.42)   92.72                67
 04/01/2024   06:44:38   (  70.77,  73.79) 04/01/2024   06:45:46  (  70.68,  75.72)   71.44                68
 04/01/2024   07:35:07   ( -69.98,-117.64) 04/01/2024   07:35:27  ( -69.97,-117.68)    1.94                20
 04/01/2024   08:25:51   (  69.88,  49.82) 04/01/2024   08:24:54  (  69.85,  49.80)    3.26                57
 04/03/2024   23:01:21   (  70.04,-169.28) 04/03/2024   23:02:21  (  70.04,-169.31)    1.04                60
 04/03/2024   23:52:03   ( -69.93,  -1.80) 04/03/2024   23:51:51  ( -69.94,  -1.82)    1.16                12
 04/04/2024   00:42:36   (  69.25, 166.51) 04/04/2024   00:41:27  (  69.32, 164.98)   60.38                69