Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 12.  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)
 06/12/2024   06:44:39   ( -70.16,-105.14) 06/12/2024   06:45:19  ( -70.16,-105.07)    2.70                40
 06/12/2024   07:35:23   (  70.02,  62.38) 06/12/2024   07:34:47  (  70.01,  62.36)    1.95                36
 06/14/2024   22:11:02   (  70.56,-157.32) 06/14/2024   22:12:12  (  70.44,-156.41)   36.03                70
 06/14/2024   23:01:37   ( -70.11,  10.70) 06/14/2024   23:01:46  ( -70.11,  10.74)    1.61                 9
 06/14/2024   23:52:21   (  69.98, 178.21) 06/14/2024   23:51:13  (  70.00, 178.24)    3.18                68
 06/17/2024   14:27:53   (  70.15, -40.92) 06/17/2024   14:28:42  (  70.18, -40.90)    3.48                49
 06/17/2024   15:18:35   ( -70.07, 126.52) 06/17/2024   15:18:12  ( -70.07, 126.57)    1.91                23
 06/20/2024   05:54:20   ( -70.98, -93.81) 06/20/2024   05:55:27  ( -70.92, -91.56)   81.97                67
 06/20/2024   06:44:50   (  70.13,  74.88) 06/20/2024   06:45:07  (  70.10,  74.88)    2.93                17
 06/20/2024   07:35:31   ( -69.99,-117.59) 06/20/2024   07:34:37  ( -69.99,-117.65)    2.38                54
 06/22/2024   22:11:03   ( -70.18,  23.25) 06/22/2024   22:12:04  ( -70.20,  23.27)    2.00                61
 06/22/2024   23:01:47   (  70.06,-169.25) 06/22/2024   23:01:31  (  70.09,-169.25)    3.26                16
 06/22/2024   23:52:19   ( -69.45,  -1.02) 06/22/2024   23:51:09  ( -69.54,  -2.37)   53.76                70
 06/25/2024   14:28:00   ( -70.12, 139.11) 06/25/2024   14:28:28  ( -70.15, 139.10)    3.30                28
 06/25/2024   15:18:45   (  70.06, -53.48) 06/25/2024   15:17:55  (  70.04, -53.42)    3.13                50