Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 4 15.  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)
 04/16/2025   06:19:38   (  70.27,  81.18) 04/16/2025   06:20:48  (  70.25,  81.26)    3.46                70
 04/16/2025   07:10:20   ( -70.15,-111.32) 04/16/2025   07:10:18  ( -70.14,-111.28)    2.58                 2
 04/16/2025   08:01:00   (  69.86,  56.43) 04/16/2025   07:59:47  (  69.92,  56.07)   15.73                73
 04/18/2025   22:36:27   (  70.19,-162.91) 04/18/2025   22:37:15  (  70.22,-162.91)    2.88                48
 04/18/2025   23:27:10   ( -70.13,   4.51) 04/18/2025   23:26:45  ( -70.11,   4.56)    3.16                25
 04/21/2025   14:53:16   (  70.18, -47.10) 04/21/2025   14:53:40  (  70.20, -47.05)    2.48                24
 04/21/2025   15:43:58   ( -70.06, 120.40) 04/21/2025   15:43:10  ( -70.08, 120.42)    2.85                48
 04/24/2025   06:19:25   ( -70.41, -98.98) 04/24/2025   06:20:37  ( -70.35, -98.59)   16.31                72
 04/24/2025   07:10:05   (  70.13,  68.77) 04/24/2025   07:10:06  (  70.13,  68.74)    1.26                 1
 04/24/2025   08:00:47   ( -70.00,-123.72) 04/24/2025   07:59:36  ( -70.02,-123.78)    2.75                71
 04/26/2025   22:36:11   ( -70.21,  17.12) 04/26/2025   22:37:04  ( -70.19,  17.07)    3.36                53
 04/26/2025   23:26:54   (  70.08,-175.37) 04/26/2025   23:26:31  (  70.07,-175.44)    3.15                23