Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 9.  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)
 06/09/2024   14:27:40   ( -70.17, 139.08) 06/09/2024   14:28:52  ( -70.18, 139.07)    0.40                72
 06/09/2024   15:18:25   (  70.09, -53.48) 06/09/2024   15:18:19  (  70.08, -53.43)    2.53                 6
 06/09/2024   16:09:03   ( -69.81, 114.27) 06/09/2024   16:07:51  ( -69.85, 113.89)   15.27                72
 06/12/2024   06:44:39   ( -70.17,-105.15) 06/12/2024   06:45:19  ( -70.15,-105.08)    2.92                40
 06/12/2024   07:35:23   (  70.03,  62.37) 06/12/2024   07:34:46  (  70.05,  62.42)    2.86                37
 06/14/2024   22:11:01   (  70.51,-157.25) 06/14/2024   22:12:12  (  70.42,-156.44)   31.76                71
 06/14/2024   23:01:36   ( -70.07,  10.77) 06/14/2024   23:01:46  ( -70.08,  10.71)    3.17                10
 06/14/2024   23:52:21   (  69.99, 178.20) 06/14/2024   23:51:13  (  69.98, 178.20)    0.97                68
 06/17/2024   14:27:53   (  70.16, -40.94) 06/17/2024   14:28:42  (  70.14, -40.96)    3.33                49
 06/17/2024   15:18:34   ( -70.03, 126.59) 06/17/2024   15:18:12  ( -70.02, 126.51)    3.00                22
 06/20/2024   05:54:19   ( -70.95, -93.74) 06/20/2024   05:55:27  ( -70.85, -91.66)   76.55                68
 06/20/2024   06:44:50   (  70.14,  74.86) 06/20/2024   06:45:05  (  70.14,  74.93)    2.92                15
 06/20/2024   07:35:31   ( -70.01,-117.61) 06/20/2024   07:34:35  ( -70.03,-117.59)    2.35                56
 06/22/2024   22:11:03   ( -70.20,  23.22) 06/22/2024   22:12:02  ( -70.20,  23.28)    2.14                59
 06/22/2024   23:01:47   (  70.08,-169.28) 06/22/2024   23:01:29  (  70.09,-169.24)    1.91                18