Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 13.  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)
 03/15/2025   06:20:12   (  70.17,  81.23) 03/15/2025   06:21:04  (  70.19,  81.19)    2.93                52
 03/15/2025   07:10:54   ( -70.08,-111.32) 03/15/2025   07:10:34  ( -70.08,-111.34)    0.80                20
 03/15/2025   08:01:22   (  69.11,  57.40) 03/15/2025   08:00:16  (  69.14,  55.04)   93.72                66
 03/17/2025   22:37:05   (  70.15,-162.97) 03/17/2025   22:37:29  (  70.17,-162.95)    2.75                24
 03/17/2025   23:27:47   ( -70.05,   4.49) 03/17/2025   23:26:59  ( -70.06,   4.53)    1.63                48
 03/20/2025   14:03:16   ( -70.29, 145.27) 03/20/2025   14:04:27  ( -70.27, 145.44)    6.81                71
 03/20/2025   14:53:58   (  70.09, -47.10) 03/20/2025   14:53:55  (  70.10, -47.16)    2.75                 3
 03/20/2025   15:44:39   ( -69.93, 120.45) 03/20/2025   15:43:26  ( -69.94, 120.25)    7.77                73
 03/23/2025   06:20:08   ( -70.18, -98.79) 03/23/2025   06:20:52  ( -70.21, -98.75)    3.20                44
 03/23/2025   07:10:52   (  70.09,  68.67) 03/23/2025   07:10:19  (  70.09,  68.73)    2.26                33
 03/25/2025   21:46:29   (  70.78,-151.28) 03/25/2025   21:47:38  (  70.70,-149.77)   56.17                69
 03/25/2025   22:37:01   ( -70.14,  17.06) 03/25/2025   22:37:16  ( -70.15,  17.06)    1.60                15
 03/25/2025   23:27:45   (  70.05,-175.50) 03/25/2025   23:26:43  (  70.03,-175.46)    2.46                62