Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 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)
 07/08/2024   22:11:19   ( -70.16,  23.26) 07/08/2024   22:12:25  ( -70.19,  23.32)    3.26                66
 07/08/2024   23:02:03   (  70.04,-169.24) 07/08/2024   23:01:53  (  70.03,-169.26)    1.03                10
 07/08/2024   23:52:39   ( -69.64,  -1.32) 07/08/2024   23:51:27  ( -69.70,  -2.09)   30.41                72
 07/11/2024   14:28:16   ( -70.14, 139.06) 07/11/2024   14:28:58  ( -70.12, 139.10)    2.66                42
 07/11/2024   15:19:00   (  70.03, -53.45) 07/11/2024   15:18:25  (  70.02, -53.40)    1.99                35
 07/14/2024   05:54:41   (  70.81,  86.46) 07/14/2024   05:55:49  (  70.74,  88.26)   66.36                68
 07/14/2024   06:45:11   ( -70.08,-105.07) 07/14/2024   06:45:29  ( -70.09,-105.08)    1.03                18
 07/14/2024   07:35:55   (  69.97,  62.41) 07/14/2024   07:34:56  (  69.98,  62.42)    1.65                59
 07/16/2024   22:11:26   (  70.17,-156.76) 07/16/2024   22:12:30  (  70.18,-156.70)    2.56                64
 07/16/2024   23:02:08   ( -70.07,  10.71) 07/16/2024   23:02:00  ( -70.08,  10.79)    2.97                 8
 07/16/2024   23:52:44   (  69.54, 178.81) 07/16/2024   23:51:33  (  69.63, 177.82)   39.93                71
 07/19/2024   14:28:22   (  70.13, -40.92) 07/19/2024   14:29:01  (  70.14, -40.88)    1.97                39
 07/19/2024   15:19:04   ( -70.02, 126.56) 07/19/2024   15:18:31  ( -70.04, 126.61)    2.66                33