Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 24.  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   (  70.63, -35.23) 02/24/2025   14:04:35  (  70.50, -34.23)   39.83                70
 02/24/2025   14:53:59   ( -70.15, 132.85) 02/24/2025   14:54:09  ( -70.16, 132.91)    3.05                10
 02/24/2025   15:44:43   (  70.00, -59.62) 02/24/2025   15:43:37  (  70.00, -59.67)    1.74                66
 02/27/2025   06:20:13   (  70.20,  81.21) 02/27/2025   06:21:06  (  70.18,  81.20)    2.42                53
 02/27/2025   07:10:54   ( -70.08,-111.29) 02/27/2025   07:10:36  ( -70.07,-111.33)    2.21                18
 02/27/2025   08:01:23   (  69.14,  57.38) 02/27/2025   08:00:16  (  69.24,  55.19)   87.44                67
 03/01/2025   22:37:08   (  70.15,-162.96) 03/01/2025   22:37:31  (  70.14,-162.96)    0.97                23
 03/01/2025   23:27:48   ( -70.03,   4.55) 03/01/2025   23:27:00  ( -70.04,   4.52)    1.34                48
 03/04/2025   14:03:18   ( -70.25, 145.35) 03/04/2025   14:04:27  ( -70.24, 145.43)    3.23                69
 03/04/2025   14:54:02   (  70.12, -47.14) 03/04/2025   14:53:54  (  70.12, -47.09)    2.14                 8
 03/04/2025   15:44:39   ( -69.78, 120.69) 03/04/2025   15:43:27  ( -69.85, 120.16)   21.70                72
 03/07/2025   06:20:12   ( -70.17, -98.76) 03/07/2025   06:20:51  ( -70.17, -98.76)    0.29                39
 03/07/2025   07:10:56   (  70.05,  68.73) 03/07/2025   07:10:18  (  70.06,  68.72)    0.53                38
 03/09/2025   21:46:30   (  70.52,-150.86) 03/09/2025   21:47:41  (  70.39,-150.17)   29.17                71
 03/09/2025   22:37:06   ( -70.11,  17.10) 03/09/2025   22:37:14  ( -70.12,  17.07)    1.65                 8
 03/09/2025   23:27:50   (  70.00,-175.42) 03/09/2025   23:26:41  (  70.00,-175.45)    1.39                69