Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 8.  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)
 03/08/2024   07:34:44   (  70.01,  62.38) 03/08/2024   07:35:41  (  70.01,  62.38)    0.78                57
 03/08/2024   08:25:26   ( -69.92,-130.16) 03/08/2024   08:25:11  ( -69.90,-130.15)    2.35                15
 03/08/2024   09:15:58   (  69.16,  38.25) 03/08/2024   09:14:49  (  69.19,  36.54)   67.76                69
 03/10/2024   23:51:42   (  69.96, 178.21) 03/10/2024   23:52:10  (  69.99, 178.21)    2.28                28
 03/11/2024   00:42:24   ( -69.87, -14.33) 03/11/2024   00:41:40  ( -69.87, -14.31)    0.99                44
 03/13/2024   15:17:59   ( -70.20, 126.29) 03/13/2024   15:19:10  ( -70.14, 126.67)   15.77                71
 03/13/2024   16:08:40   (  69.93, -65.98) 03/13/2024   16:08:39  (  69.92, -65.99)    1.20                 1
 03/13/2024   16:59:22   ( -69.84, 101.48) 03/13/2024   16:58:09  ( -69.81, 101.49)    2.43                73
 03/16/2024   07:34:53   ( -70.02,-117.66) 03/16/2024   07:35:39  ( -69.99,-117.66)    2.89                46
 03/16/2024   08:25:37   (  69.91,  49.81) 03/16/2024   08:25:06  (  69.88,  49.83)    3.43                31
 03/18/2024   23:01:19   (  70.63,-170.18) 03/18/2024   23:02:28  (  70.52,-168.65)   58.26                69
 03/18/2024   23:51:50   ( -69.95,  -1.79) 03/18/2024   23:52:06  ( -69.97,  -1.80)    2.83                16
 03/19/2024   00:42:34   (  69.84, 165.67) 03/19/2024   00:41:33  (  69.86, 165.69)    1.55                61
 03/21/2024   15:18:05   (  70.00, -53.42) 03/21/2024   15:19:03  (  70.02, -53.48)    3.32                58
 03/21/2024   16:08:48   ( -69.94, 113.98) 03/21/2024   16:08:33  ( -69.92, 114.02)    2.65                15
 03/21/2024   16:59:19   (  69.15, -77.56) 03/21/2024   16:58:11  (  69.19, -79.32)   69.82                68