Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 7 2.  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)
 07/03/2025   22:11:57   (  70.10,-156.68) 07/03/2025   22:12:47  (  70.11,-156.76)    3.09                50
 07/03/2025   23:02:39   ( -70.03,  10.74) 07/03/2025   23:02:16  ( -70.06,  10.79)    3.32                23
 07/06/2025   14:28:53   (  70.09, -40.90) 07/06/2025   14:29:17  (  70.08, -40.93)    2.25                24
 07/06/2025   15:19:34   ( -69.96, 126.62) 07/06/2025   15:18:47  ( -69.97, 126.55)    2.83                47
 07/09/2025   05:55:07   ( -70.31, -92.78) 07/09/2025   05:56:18  ( -70.24, -92.45)   14.17                71
 07/09/2025   06:45:48   (  70.08,  74.88) 07/09/2025   06:45:45  (  70.08,  74.95)    2.79                 3
 07/09/2025   07:36:29   ( -69.94,-117.59) 07/09/2025   07:35:15  ( -69.97,-117.56)    3.32                74
 07/11/2025   22:11:59   ( -70.14,  23.25) 07/11/2025   22:12:48  ( -70.12,  23.26)    1.77                49
 07/11/2025   23:02:43   (  70.02,-169.26) 07/11/2025   23:02:15  (  70.01,-169.26)    1.86                28
 07/14/2025   13:38:28   (  71.02, -29.71) 07/14/2025   13:39:34  (  70.91, -27.31)   87.98                66
 07/14/2025   14:28:54   ( -70.08, 139.11) 07/14/2025   14:29:17  ( -70.10, 139.11)    2.33                23
 07/14/2025   15:19:38   (  69.97, -53.41) 07/14/2025   15:18:44  (  69.98, -53.41)    1.12                54