Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 2 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)
 02/23/2023   15:18:41   ( -70.07, 126.65) 02/23/2023   15:19:17  ( -70.10, 126.64)    2.94                36
 02/23/2023   16:09:25   (  69.96, -65.87) 02/23/2023   16:08:45  (  69.94, -65.94)    3.36                40
 02/26/2023   06:44:59   (  70.41,  74.57) 02/26/2023   06:46:09  (  70.33,  75.24)   26.75                70
 02/26/2023   07:35:36   ( -70.05,-117.56) 02/26/2023   07:35:42  ( -70.05,-117.52)    1.37                 6
 02/26/2023   08:26:20   (  69.94,  49.92) 02/26/2023   08:25:09  (  69.95,  49.97)    1.96                71
 02/28/2023   23:01:47   (  70.09,-169.17) 02/28/2023   23:02:36  (  70.09,-169.21)    1.70                49
 02/28/2023   23:52:29   ( -69.99,  -1.70) 02/28/2023   23:52:06  ( -69.98,  -1.73)    2.29                23
 03/03/2023   14:28:13   ( -70.98, 137.86) 03/03/2023   14:29:20  ( -70.85, 140.18)   85.57                67
 03/03/2023   15:18:41   (  70.04, -53.33) 03/03/2023   15:19:00  (  70.03, -53.39)    2.98                19
 03/03/2023   16:09:23   ( -69.94, 114.14) 03/03/2023   16:08:30  ( -69.92, 114.09)    3.28                53
 03/06/2023   06:44:51   ( -70.11,-104.97) 03/06/2023   06:45:56  ( -70.11,-105.02)    1.98                65
 03/06/2023   07:35:35   (  70.01,  62.49) 03/06/2023   07:35:23  (  69.99,  62.46)    2.17                12
 03/06/2023   08:26:10   ( -69.53,-129.49) 03/06/2023   08:24:59  ( -69.55,-130.51)   39.74                71