Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 6 5.  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)
 06/07/2025   05:54:47   ( -70.17, -92.49) 06/07/2025   05:55:59  ( -70.16, -92.55)    2.84                72
 06/07/2025   06:45:32   (  70.07,  74.97) 06/07/2025   06:45:26  (  70.06,  74.95)    1.46                 6
 06/07/2025   07:36:10   ( -69.81,-117.31) 06/07/2025   07:34:57  ( -69.89,-117.66)   16.34                73
 06/09/2025   22:11:43   ( -70.17,  23.29) 06/09/2025   22:12:25  ( -70.17,  23.36)    3.02                42
 06/09/2025   23:02:27   (  70.02,-169.18) 06/09/2025   23:01:53  (  70.02,-169.22)    1.40                34
 06/12/2025   13:38:07   (  70.70, -29.12) 06/12/2025   13:39:16  (  70.61, -27.74)   51.85                69
 06/12/2025   14:28:39   ( -70.11, 139.13) 06/12/2025   14:28:53  ( -70.11, 139.17)    1.45                14
 06/12/2025   15:19:23   (  69.96, -53.34) 06/12/2025   15:18:21  (  69.95, -53.41)    3.09                62
 06/15/2025   05:54:53   (  70.13,  87.55) 06/15/2025   05:55:51  (  70.14,  87.47)    3.66                58
 06/15/2025   06:45:35   ( -70.06,-105.03) 06/15/2025   06:45:21  ( -70.03,-105.05)    2.96                14
 06/15/2025   07:36:07   (  69.28,  63.42) 06/15/2025   07:34:59  (  69.32,  61.61)   71.33                68
 06/17/2025   22:11:49   (  70.08,-156.62) 06/17/2025   22:12:18  (  70.10,-156.70)    3.33                29
 06/17/2025   23:02:31   ( -70.01,  10.80) 06/17/2025   23:01:48  ( -69.99,  10.78)    2.96                43