Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 5 13.  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)
 05/13/2024   23:01:11   ( -70.12,  10.72) 05/13/2024   23:02:05  ( -70.11,  10.75)    1.89                54
 05/13/2024   23:51:55   (  70.00, 178.21) 05/13/2024   23:51:32  (  70.01, 178.24)    1.48                23
 05/14/2024   00:42:22   ( -69.13, -13.20) 05/14/2024   00:41:14  ( -69.23, -15.17)   78.75                68
 05/16/2024   15:18:01   ( -70.08, 126.58) 05/16/2024   15:18:30  ( -70.06, 126.56)    2.22                29
 05/16/2024   16:08:45   (  69.96, -65.94) 05/16/2024   16:07:57  (  69.95, -65.95)    1.45                48
 05/19/2024   06:44:12   (  70.25,  74.79) 05/19/2024   06:45:23  (  70.20,  75.03)   10.48                71
 05/19/2024   07:34:52   ( -70.06,-117.60) 05/19/2024   07:34:54  ( -70.04,-117.57)    2.66                 2
 05/19/2024   08:25:34   (  69.84,  50.04) 05/19/2024   08:24:22  (  69.87,  49.83)    8.62                72
 05/21/2024   23:01:00   (  70.10,-169.18) 05/21/2024   23:01:47  (  70.10,-169.22)    1.45                47
 05/21/2024   23:51:42   ( -70.01,  -1.73) 05/21/2024   23:51:17  ( -69.99,  -1.74)    2.59                25
 05/24/2024   14:27:21   ( -70.97, 137.90) 05/24/2024   14:28:28  ( -70.91, 140.24)   85.39                67
 05/24/2024   15:17:50   (  70.08, -53.35) 05/24/2024   15:18:08  (  70.08, -53.34)    0.55                18
 05/24/2024   16:08:32   ( -69.99, 114.10) 05/24/2024   16:07:38  ( -69.97, 114.14)    2.81                54