Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 21.  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)
 03/21/2024   15:18:05   (  70.01, -53.44) 03/21/2024   15:19:09  (  70.02, -53.51)    2.73                64
 03/21/2024   16:08:47   ( -69.92, 114.02) 03/21/2024   16:08:39  ( -69.91, 113.96)    2.48                 8
 03/21/2024   16:59:23   (  69.38, -77.88) 03/21/2024   16:58:13  (  69.41, -79.06)   46.35                70
 03/24/2024   07:35:02   (  69.97,  62.38) 03/24/2024   07:35:37  (  69.98,  62.32)    2.93                35
 03/24/2024   08:25:44   ( -69.87,-130.15) 03/24/2024   08:25:07  ( -69.87,-130.20)    2.03                37
 03/26/2024   23:01:22   ( -70.41,  10.15) 03/26/2024   23:02:33  ( -70.29,  11.00)   34.42                71
 03/26/2024   23:51:59   (  69.94, 178.20) 03/26/2024   23:52:04  (  69.96, 178.17)    2.61                 5
 03/27/2024   00:42:41   ( -69.84, -14.33) 03/27/2024   00:41:34  ( -69.85, -14.34)    1.93                67
 03/29/2024   15:18:11   ( -70.02, 126.52) 03/29/2024   15:19:03  ( -70.02, 126.49)    1.40                52
 03/29/2024   16:08:55   (  69.92, -66.01) 03/29/2024   16:08:30  (  69.90, -66.02)    2.32                25
 03/29/2024   16:59:21   ( -68.97, 102.68) 03/29/2024   16:58:14  ( -69.03, 100.44)   89.44                67
 04/01/2024   06:44:40   (  70.86,  73.64) 04/01/2024   06:45:47  (  70.74,  75.80)   80.27                67
 04/01/2024   07:35:07   ( -69.96,-117.61) 04/01/2024   07:35:29  ( -69.98,-117.67)    2.71                22
 04/01/2024   08:25:51   (  69.86,  49.84) 04/01/2024   08:24:56  (  69.86,  49.81)    1.62                55
 04/03/2024   23:01:22   (  70.08,-169.34) 04/03/2024   23:02:24  (  70.05,-169.31)    3.32                62
 04/03/2024   23:52:04   ( -69.97,  -1.85) 04/03/2024   23:51:54  ( -69.95,  -1.82)    2.16                10
 04/04/2024   00:42:39   (  69.39, 166.30) 04/04/2024   00:41:28  (  69.44, 165.14)   45.95                71