Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 22.  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)
 02/24/2025   14:03:25   (  70.62, -35.23) 02/24/2025   14:04:35  (  70.50, -34.22)   39.66                70
 02/24/2025   14:53:59   ( -70.14, 132.85) 02/24/2025   14:54:10  ( -70.12, 132.85)    2.51                11
 02/24/2025   15:44:43   (  70.00, -59.62) 02/24/2025   15:43:37  (  70.01, -59.66)    2.12                66
 02/27/2025   06:20:13   (  70.19,  81.22) 02/27/2025   06:21:06  (  70.20,  81.23)    0.85                53
 02/27/2025   07:10:54   ( -70.07,-111.28) 02/27/2025   07:10:36  ( -70.09,-111.30)    2.17                18
 02/27/2025   08:01:24   (  69.19,  57.32) 02/27/2025   08:00:17  (  69.20,  55.14)   85.95                67
 03/01/2025   22:37:07   (  70.14,-162.94) 03/01/2025   22:37:31  (  70.13,-162.98)    2.17                24
 03/01/2025   23:27:48   ( -70.01,   4.57) 03/01/2025   23:27:01  ( -70.02,   4.50)    2.83                47
 03/04/2025   14:03:18   ( -70.23, 145.38) 03/04/2025   14:04:28  ( -70.24, 145.44)    2.56                70
 03/04/2025   14:54:02   (  70.10, -47.12) 03/04/2025   14:53:55  (  70.13, -47.09)    2.77                 7
 03/04/2025   15:44:40   ( -69.81, 120.64) 03/04/2025   15:43:27  ( -69.91, 120.24)   18.84                73
 03/07/2025   06:20:12   ( -70.14, -98.72) 03/07/2025   06:20:53  ( -70.15, -98.80)    3.08                41
 03/07/2025   07:10:57   (  70.08,  68.69) 03/07/2025   07:10:19  (  70.08,  68.75)    2.53                38