Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 17.  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   ( -70.19, -98.75) 02/19/2025   06:21:16  ( -70.18, -98.82)    3.02                69
 02/19/2025   07:10:52   (  70.10,  68.71) 02/19/2025   07:10:43  (  70.08,  68.67)    2.45                 9
 02/19/2025   08:01:28   ( -69.72,-123.41) 02/19/2025   08:00:16  ( -69.80,-124.08)   27.41                72
 02/21/2025   22:37:04   ( -70.20,  17.00) 02/21/2025   22:37:43  ( -70.19,  17.06)    2.96                39
 02/21/2025   23:27:48   (  70.06,-175.47) 02/21/2025   23:27:10  (  70.08,-175.45)    2.28                38
 02/24/2025   14:03:25   (  70.61, -35.20) 02/24/2025   14:04:35  (  70.52, -34.19)   38.61                70
 02/24/2025   14:53:59   ( -70.12, 132.89) 02/24/2025   14:54:10  ( -70.14, 132.89)    2.70                11
 02/24/2025   15:44:44   (  70.03, -59.67) 02/24/2025   15:43:37  (  70.03, -59.63)    1.80                67
 02/27/2025   06:20:13   (  70.17,  81.24) 02/27/2025   06:21:07  (  70.16,  81.17)    3.57                54
 02/27/2025   07:10:54   ( -70.10,-111.32) 02/27/2025   07:10:35  ( -70.11,-111.27)    2.18                19
 02/27/2025   08:01:23   (  69.17,  57.34) 02/27/2025   08:00:16  (  69.22,  55.16)   86.37                67
 03/01/2025   22:37:07   (  70.12,-162.91) 03/01/2025   22:37:31  (  70.13,-162.98)    2.52                24
 03/01/2025   23:27:49   ( -70.04,   4.53) 03/01/2025   23:27:01  ( -70.03,   4.51)    1.90                48