Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 11.  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   ( -70.15,-105.12) 06/12/2024   06:45:20  ( -70.12,-105.13)    3.06                41
 06/12/2024   07:35:23   (  70.01,  62.40) 06/12/2024   07:34:47  (  70.02,  62.38)    1.41                36
 06/14/2024   22:11:02   (  70.55,-157.30) 06/14/2024   22:12:13  (  70.40,-156.48)   34.98                71
 06/14/2024   23:01:37   ( -70.10,  10.72) 06/14/2024   23:01:46  ( -70.11,  10.75)    1.94                 9
 06/14/2024   23:52:21   (  69.97, 178.23) 06/14/2024   23:51:14  (  69.96, 178.17)    2.47                67
 06/17/2024   14:27:52   (  70.15, -40.91) 06/17/2024   14:28:41  (  70.18, -40.90)    3.59                49
 06/17/2024   15:18:34   ( -70.07, 126.53) 06/17/2024   15:18:11  ( -70.06, 126.57)    1.46                23
 06/20/2024   05:54:20   ( -70.99, -93.81) 06/20/2024   05:55:27  ( -70.90, -91.58)   81.52                67
 06/20/2024   06:44:50   (  70.13,  74.88) 06/20/2024   06:45:06  (  70.14,  74.93)    2.22                16
 06/20/2024   07:35:31   ( -69.99,-117.59) 06/20/2024   07:34:36  ( -70.03,-117.59)    3.62                55
 06/22/2024   22:11:03   ( -70.19,  23.24) 06/22/2024   22:12:04  ( -70.17,  23.22)    3.02                61
 06/22/2024   23:01:47   (  70.07,-169.27) 06/22/2024   23:01:31  (  70.06,-169.29)    2.16                16
 06/22/2024   23:52:19   ( -69.46,  -1.03) 06/22/2024   23:51:09  ( -69.50,  -2.41)   54.09                70