Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2022 11 29.  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)
 12/01/2022   18:11:41   (  70.14, -96.49) 12/01/2022   18:12:26  (  70.12, -96.52)    2.11                45
 12/01/2022   19:02:05   ( -70.06,  71.02) 12/01/2022   19:01:55  ( -70.06,  71.02)    0.14                10
 12/01/2022   19:52:40   (  69.53,-120.88) 12/01/2022   19:51:29  (  69.57,-122.01)   44.01                71
 12/04/2022   18:42:11   (  70.16,-104.14) 12/04/2022   18:43:18  (  70.15,-104.20)    2.44                67
 12/04/2022   19:32:35   ( -70.10,  63.35) 12/04/2022   19:32:47  ( -70.09,  63.35)    0.38                12
 12/04/2022   20:23:18   (  69.98,-129.15) 12/04/2022   20:22:14  (  69.99,-129.15)    1.42                64
 12/07/2022   19:12:51   (  70.79,-112.74) 12/07/2022   19:13:59  (  70.71,-111.09)   61.21                68
 12/07/2022   20:03:04   ( -70.15,  55.67) 12/07/2022   20:03:37  ( -70.16,  55.74)    3.05                33
 12/07/2022   20:53:47   (  70.02,-136.83) 12/07/2022   20:53:05  (  70.00,-136.85)    2.90                42
 12/07/2022   21:43:55   ( -69.11,  31.88) 12/07/2022   21:42:48  ( -69.17,  29.66)   87.92                67
 12/10/2022   20:33:33   ( -70.16,  48.04) 12/10/2022   20:34:29  ( -70.16,  48.01)    1.05                56
 12/10/2022   21:24:16   (  70.04,-144.47) 12/10/2022   21:23:56  (  70.04,-144.50)    1.25                20
 12/10/2022   22:14:39   ( -69.93,  23.10) 12/10/2022   22:13:26  ( -69.94,  22.98)    4.73                73