Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2025   06:20:07   ( -70.18, -98.73) 02/19/2025   06:21:16  ( -70.20, -98.81)    3.63                69
 02/19/2025   07:10:52   (  70.08,  68.73) 02/19/2025   07:10:43  (  70.09,  68.69)    1.98                 9
 02/19/2025   08:01:29   ( -69.76,-123.47) 02/19/2025   08:00:16  ( -69.82,-124.06)   23.70                73
 02/21/2025   22:37:04   ( -70.19,  17.01) 02/21/2025   22:37:43  ( -70.20,  17.08)    2.60                39
 02/21/2025   23:27:48   (  70.05,-175.46) 02/21/2025   23:27:11  (  70.03,-175.51)    2.37                37
 02/24/2025   14:03:24   (  70.60, -35.19) 02/24/2025   14:04:35  (  70.48, -34.26)   37.30                71
 02/24/2025   14:53:58   ( -70.11, 132.90) 02/24/2025   14:54:10  ( -70.10, 132.82)    3.21                12
 02/24/2025   15:44:43   (  70.03, -59.66) 02/24/2025   15:43:36  (  70.04, -59.61)    2.47                67
 02/27/2025   06:20:12   (  70.18,  81.24) 02/27/2025   06:21:06  (  70.16,  81.18)    2.71                54
 02/27/2025   07:10:54   ( -70.10,-111.33) 02/27/2025   07:10:35  ( -70.12,-111.26)    2.87                19
 02/27/2025   08:01:23   (  69.17,  57.34) 02/27/2025   08:00:16  (  69.22,  55.17)   85.91                67
 03/01/2025   22:37:07   (  70.13,-162.93) 03/01/2025   22:37:31  (  70.13,-162.97)    1.58                24
 03/01/2025   23:27:49   ( -70.06,   4.51) 03/01/2025   23:27:01  ( -70.03,   4.52)    2.63                48