Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 25.  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)
 07/27/2024   14:28:25   ( -70.09, 139.14) 07/27/2024   14:28:57  ( -70.07, 139.07)    3.27                32
 07/27/2024   15:19:09   (  69.98, -53.38) 07/27/2024   15:18:24  (  69.97, -53.43)    2.42                45
 07/30/2024   05:54:41   (  70.24,  87.37) 07/30/2024   05:55:52  (  70.23,  87.57)    7.55                71
 07/30/2024   06:45:22   ( -70.08,-105.07) 07/30/2024   06:45:23  ( -70.07,-105.04)    1.83                 1
 07/30/2024   07:36:04   (  69.87,  62.55) 07/30/2024   07:34:51  (  69.90,  62.38)    7.75                73
 08/01/2024   22:11:36   (  70.14,-156.71) 08/01/2024   22:12:19  (  70.12,-156.69)    1.82                43
 08/01/2024   23:02:18   ( -70.03,  10.78) 08/01/2024   23:01:49  ( -70.01,  10.79)    1.65                29
 08/04/2024   13:37:59   ( -70.77, 150.74) 08/04/2024   13:39:08  ( -70.68, 152.40)   61.73                69
 08/04/2024   14:28:31   (  70.05, -40.80) 08/04/2024   14:28:44  (  70.08, -40.85)    3.08                13
 08/04/2024   15:19:14   ( -69.99, 126.60) 08/04/2024   15:18:14  ( -69.97, 126.63)    2.76                60
 08/07/2024   05:54:43   ( -70.18, -92.53) 08/07/2024   05:55:40  ( -70.15, -92.47)    3.20                57
 08/07/2024   06:45:26   (  70.03,  75.00) 08/07/2024   06:45:07  (  70.04,  75.00)    0.30                19