Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 22.  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)
 06/22/2024   22:11:03   ( -70.17,  23.27) 06/22/2024   22:12:05  ( -70.19,  23.25)    2.23                62
 06/22/2024   23:01:48   (  70.09,-169.30) 06/22/2024   23:01:32  (  70.10,-169.24)    2.12                16
 06/22/2024   23:52:20   ( -69.49,  -1.08) 06/22/2024   23:51:10  ( -69.53,  -2.39)   51.07                70
 06/25/2024   14:28:01   ( -70.15, 139.07) 06/25/2024   14:28:30  ( -70.13, 139.06)    1.97                29
 06/25/2024   15:18:45   (  70.02, -53.42) 06/25/2024   15:17:57  (  70.03, -53.44)    1.32                48
 06/28/2024   05:54:17   (  70.22,  87.41) 06/28/2024   05:55:24  (  70.22,  87.45)    1.47                67
 06/28/2024   06:44:58   ( -70.08,-105.06) 06/28/2024   06:44:54  ( -70.10,-105.09)    2.28                 4
 06/28/2024   07:35:37   (  69.69,  62.83) 06/28/2024   07:34:25  (  69.78,  62.10)   29.68                72
 06/30/2024   22:11:13   (  70.16,-156.74) 06/30/2024   22:11:47  (  70.16,-156.74)    0.73                34
 06/30/2024   23:01:54   ( -70.02,  10.80) 06/30/2024   23:01:17  ( -70.04,  10.73)    3.54                37
 07/03/2024   13:37:30   ( -70.44, 151.29) 07/03/2024   13:38:41  ( -70.34, 151.78)   21.10                71
 07/03/2024   14:28:10   (  70.11, -40.89) 07/03/2024   14:28:10  (  70.12, -40.89)    0.90                 0
 07/03/2024   15:18:52   ( -70.02, 126.57) 07/03/2024   15:17:40  ( -70.01, 126.58)    1.32                72