Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 18.  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)
 06/20/2024   05:54:20   ( -70.98, -93.80) 06/20/2024   05:55:28  ( -70.88, -91.62)   80.32                68
 06/20/2024   06:44:50   (  70.12,  74.90) 06/20/2024   06:45:07  (  70.13,  74.91)    1.21                17
 06/20/2024   07:35:31   ( -69.99,-117.59) 06/20/2024   07:34:37  ( -70.01,-117.63)    2.36                54
 06/22/2024   22:11:03   ( -70.17,  23.27) 06/22/2024   22:12:05  ( -70.19,  23.25)    2.69                62
 06/22/2024   23:01:48   (  70.09,-169.30) 06/22/2024   23:01:32  (  70.09,-169.25)    2.02                16
 06/22/2024   23:52:20   ( -69.49,  -1.08) 06/22/2024   23:51:10  ( -69.53,  -2.38)   51.20                70
 06/25/2024   14:28:01   ( -70.15, 139.07) 06/25/2024   14:28:30  ( -70.13, 139.06)    2.08                29
 06/25/2024   15:18:45   (  70.02, -53.43) 06/25/2024   15:17:57  (  70.02, -53.45)    0.68                48
 06/28/2024   05:54:17   (  70.23,  87.40) 06/28/2024   05:55:24  (  70.21,  87.43)    2.24                67
 06/28/2024   06:44:58   ( -70.08,-105.06) 06/28/2024   06:44:54  ( -70.09,-105.10)    1.80                 4
 06/28/2024   07:35:37   (  69.70,  62.83) 06/28/2024   07:34:25  (  69.76,  62.08)   29.46                72
 06/30/2024   22:11:13   (  70.17,-156.75) 06/30/2024   22:11:46  (  70.19,-156.69)    3.29                33
 06/30/2024   23:01:55   ( -70.08,  10.71) 06/30/2024   23:01:16  ( -70.08,  10.78)    2.68                39