Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 1.  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)
 07/03/2024   14:28:09   (  70.08, -40.85) 07/03/2024   14:28:47  (  70.09, -40.92)    2.99                38
 07/03/2024   15:18:51   ( -70.00, 126.60) 07/03/2024   15:18:17  ( -69.98, 126.55)    3.02                34
 07/06/2024   05:54:35   ( -70.86, -93.62) 07/06/2024   05:55:43  ( -70.73, -91.76)   69.77                68
 07/06/2024   06:45:06   (  70.06,  74.96) 07/06/2024   06:45:20  (  70.08,  74.93)    2.55                14
 07/06/2024   07:35:48   ( -69.97,-117.58) 07/06/2024   07:34:50  ( -69.97,-117.59)    0.22                58
 07/08/2024   22:11:19   ( -70.16,  23.27) 07/08/2024   22:12:26  ( -70.13,  23.24)    2.68                67
 07/08/2024   23:02:03   (  70.04,-169.24) 07/08/2024   23:01:53  (  70.03,-169.27)    1.89                10
 07/08/2024   23:52:39   ( -69.63,  -1.31) 07/08/2024   23:51:27  ( -69.70,  -2.09)   31.02                72
 07/11/2024   14:28:15   ( -70.09, 139.14) 07/11/2024   14:28:58  ( -70.10, 139.07)    2.98                43
 07/11/2024   15:18:59   (  69.98, -53.38) 07/11/2024   15:18:25  (  69.99, -53.44)    2.56                34
 07/14/2024   05:54:40   (  70.77,  86.51) 07/14/2024   05:55:49  (  70.68,  88.16)   61.50                69
 07/14/2024   06:45:11   ( -70.09,-105.09) 07/14/2024   06:45:28  ( -70.08,-105.08)    0.70                17
 07/14/2024   07:35:55   (  69.98,  62.38) 07/14/2024   07:34:55  (  69.97,  62.41)    1.96                60