Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 6.  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)
 05/07/2025   14:02:55   ( -70.67, 144.74) 05/07/2025   14:04:06  ( -70.54, 145.78)   40.92                71
 05/07/2025   14:53:31   (  70.14, -47.12) 05/07/2025   14:53:38  (  70.17, -47.12)    2.98                 7
 05/07/2025   15:44:13   ( -70.04, 120.35) 05/07/2025   15:43:08  ( -70.05, 120.34)    1.11                65
 05/10/2025   06:19:45   ( -70.24, -98.81) 05/10/2025   06:20:39  ( -70.23, -98.80)    0.59                54
 05/10/2025   07:10:29   (  70.12,  68.67) 05/10/2025   07:10:06  (  70.13,  68.70)    1.07                23
 05/10/2025   08:00:57   ( -69.29,-122.78) 05/10/2025   07:59:49  ( -69.30,-124.80)   79.63                68
 05/12/2025   21:46:16   (  71.16,-151.88) 05/12/2025   21:47:22  (  71.04,-149.33)   92.84                66
 05/12/2025   22:36:41   ( -70.17,  17.04) 05/12/2025   22:37:06  ( -70.17,  16.99)    2.25                25
 05/12/2025   23:27:25   (  70.06,-175.48) 05/12/2025   23:26:33  (  70.06,-175.52)    1.74                52
 05/15/2025   14:02:56   (  70.22, -34.58) 05/15/2025   14:04:03  (  70.23, -34.66)    3.52                67
 05/15/2025   14:53:38   ( -70.12, 132.88) 05/15/2025   14:53:33  ( -70.13, 132.81)    2.54                 5
 05/15/2025   15:44:16   (  69.69, -59.16) 05/15/2025   15:43:05  (  69.74, -60.08)   35.85                71
 05/18/2025   06:19:54   (  70.22,  81.16) 05/18/2025   06:20:29  (  70.22,  81.20)    1.55                35
 05/18/2025   07:10:36   ( -70.13,-111.37) 05/18/2025   07:09:59  ( -70.11,-111.32)    2.92                37