Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 6 8.  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)
 06/09/2025   22:11:43   ( -70.17,  23.28) 06/09/2025   22:12:33  ( -70.16,  23.31)    1.50                50
 06/09/2025   23:02:28   (  70.07,-169.26) 06/09/2025   23:02:00  (  70.06,-169.19)    3.02                28
 06/09/2025   23:52:52   ( -69.06,  -0.48) 06/09/2025   23:51:45  ( -69.12,  -2.83)   93.60                67
 06/12/2025   13:38:15   (  71.12, -29.82) 06/12/2025   13:39:21  (  71.03, -27.15)   96.71                66
 06/12/2025   14:28:39   ( -70.11, 139.13) 06/12/2025   14:29:06  ( -70.10, 139.09)    2.22                27
 06/12/2025   15:19:24   (  70.02, -53.42) 06/12/2025   15:18:33  (  70.00, -53.41)    2.21                51
 06/15/2025   05:54:56   (  70.28,  87.32) 06/15/2025   05:56:07  (  70.23,  87.52)    9.49                71
 06/15/2025   06:45:35   ( -70.06,-105.02) 06/15/2025   06:45:38  ( -70.07,-105.08)    2.26                 3
 06/15/2025   07:36:19   (  69.91,  62.50) 06/15/2025   07:35:05  (  69.96,  62.42)    6.36                74
 06/17/2025   22:11:51   (  70.18,-156.76) 06/17/2025   22:12:39  (  70.17,-156.69)    2.97                48
 06/17/2025   23:02:32   ( -70.06,  10.74) 06/17/2025   23:02:09  ( -70.06,  10.80)    2.30                23
 06/20/2025   14:28:45   (  70.08, -40.85) 06/20/2025   14:29:10  (  70.08, -40.93)    3.11                25
 06/20/2025   15:19:27   ( -70.01, 126.58) 06/20/2025   15:18:40  ( -69.98, 126.56)    2.80                47