Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 5 7.  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)
 05/08/2025   22:11:25   ( -70.74,  22.51) 05/08/2025   22:12:35  ( -70.61,  23.82)   50.66                70
 05/08/2025   23:01:59   (  70.10,-169.18) 05/08/2025   23:02:09  (  70.12,-169.24)    3.24                10
 05/08/2025   23:52:41   ( -70.00,  -1.71) 05/08/2025   23:51:39  ( -70.00,  -1.77)    2.21                62
 05/11/2025   14:28:13   ( -70.20, 139.12) 05/11/2025   14:29:09  ( -70.20, 139.11)    0.74                56
 05/11/2025   15:18:57   (  70.08, -53.39) 05/11/2025   15:18:36  (  70.09, -53.40)    0.64                21
 05/11/2025   16:09:26   ( -69.30, 115.08) 05/11/2025   16:08:17  ( -69.37, 113.25)   72.07                69
 05/14/2025   05:54:46   (  71.18,  85.97) 05/14/2025   05:55:51  (  71.07,  88.68)   98.02                65
 05/14/2025   06:45:10   ( -70.14,-105.02) 05/14/2025   06:45:36  ( -70.14,-105.09)    2.40                26
 05/14/2025   07:35:54   (  70.02,  62.46) 05/14/2025   07:35:03  (  70.03,  62.40)    2.33                51
 05/16/2025   22:11:25   (  70.23,-156.72) 05/16/2025   22:12:31  (  70.22,-156.72)    1.21                66
 05/16/2025   23:02:07   ( -70.14,  10.74) 05/16/2025   23:02:01  ( -70.11,  10.76)    3.09                 6
 05/16/2025   23:52:44   (  69.65, 178.78) 05/16/2025   23:51:33  (  69.72, 177.86)   36.17                71
 05/19/2025   14:28:22   (  70.18, -40.89) 05/19/2025   14:28:57  (  70.16, -40.92)    2.72                35
 05/19/2025   15:19:04   ( -70.09, 126.57) 05/19/2025   15:18:26  ( -70.10, 126.64)    3.36                38