Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 12 17.  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)
 12/18/2024   13:39:08   (  70.22, -28.42) 12/18/2024   13:40:14  (  70.21, -28.43)    1.37                66
 12/18/2024   14:29:50   ( -70.11, 139.07) 12/18/2024   14:29:44  ( -70.10, 139.04)    1.87                 6
 12/18/2024   15:20:27   (  69.65, -52.93) 12/18/2024   15:19:16  (  69.72, -53.84)   35.98                71
 12/21/2024   05:55:59   (  70.19,  87.41) 12/21/2024   05:56:43  (  70.20,  87.44)    1.45                44
 12/21/2024   06:46:41   ( -70.08,-105.10) 12/21/2024   06:46:13  ( -70.09,-105.08)    1.26                28
 12/23/2024   22:12:48   (  70.12,-156.70) 12/23/2024   22:13:11  (  70.14,-156.76)    2.86                23
 12/23/2024   23:03:31   ( -70.06,  10.70) 12/23/2024   23:02:41  ( -70.03,  10.72)    3.24                50
 12/26/2024   13:38:58   ( -70.36, 151.39) 12/26/2024   13:40:10  ( -70.31, 151.74)   13.91                72
 12/26/2024   14:29:39   (  70.12, -40.92) 12/26/2024   14:29:39  (  70.09, -40.94)    3.29                 0
 12/26/2024   15:20:21   ( -70.01, 126.57) 12/26/2024   15:19:09  ( -69.99, 126.55)    2.44                72
 12/29/2024   05:55:45   ( -70.16, -92.51) 12/29/2024   05:56:39  ( -70.17, -92.59)    2.86                54
 12/29/2024   06:46:29   (  70.08,  74.93) 12/29/2024   06:46:05  (  70.10,  74.97)    3.28                24