Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 8.  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)
 05/10/2025   06:19:45   ( -70.24, -98.83) 05/10/2025   06:20:39  ( -70.22, -98.81)    2.52                54
 05/10/2025   07:10:29   (  70.13,  68.66) 05/10/2025   07:10:06  (  70.12,  68.69)    1.56                23
 05/10/2025   08:00:56   ( -69.24,-122.72) 05/10/2025   07:59:49  ( -69.29,-124.81)   82.76                67
 05/12/2025   21:46:17   (  71.16,-151.89) 05/12/2025   21:47:23  (  71.04,-149.33)   93.15                66
 05/12/2025   22:36:42   ( -70.18,  17.03) 05/12/2025   22:37:07  ( -70.16,  16.99)    2.35                25
 05/12/2025   23:27:26   (  70.06,-175.48) 05/12/2025   23:26:34  (  70.06,-175.52)    1.46                52
 05/15/2025   14:02:57   (  70.27, -34.66) 05/15/2025   14:04:03  (  70.25, -34.64)    2.10                66
 05/15/2025   14:53:38   ( -70.12, 132.88) 05/15/2025   14:53:33  ( -70.14, 132.83)    2.73                 5
 05/15/2025   15:44:16   (  69.69, -59.16) 05/15/2025   15:43:05  (  69.75, -60.06)   35.58                71
 05/18/2025   06:19:54   (  70.21,  81.18) 05/18/2025   06:20:30  (  70.20,  81.17)    1.94                36
 05/18/2025   07:10:35   ( -70.07,-111.28) 05/18/2025   07:10:00  ( -70.09,-111.35)    3.57                35
 05/20/2025   21:46:14   ( -70.65,  28.94) 05/20/2025   21:47:25  ( -70.51,  29.86)   37.77                71
 05/20/2025   22:36:51   (  70.17,-162.99) 05/20/2025   22:36:56  (  70.17,-162.98)    1.09                 5
 05/20/2025   23:27:33   ( -70.07,   4.47) 05/20/2025   23:26:26  ( -70.07,   4.51)    1.61                67