Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 9.  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)
 03/09/2025   22:37:06   ( -70.15,  17.05) 03/09/2025   22:37:39  ( -70.15,  16.99)    2.05                33
 03/09/2025   23:27:51   (  70.07,-175.53) 03/09/2025   23:27:06  (  70.04,-175.51)    3.35                45
 03/12/2025   14:03:23   (  70.44, -34.97) 03/12/2025   14:04:35  (  70.35, -34.47)   21.23                72
 03/12/2025   14:54:01   ( -70.15, 132.81) 03/12/2025   14:54:07  ( -70.13, 132.85)    2.08                 6
 03/12/2025   15:44:45   (  70.03, -59.69) 03/12/2025   15:43:34  (  70.02, -59.66)    1.45                71
 03/15/2025   06:20:12   (  70.20,  81.19) 03/15/2025   06:21:04  (  70.19,  81.18)    0.87                52
 03/15/2025   07:10:54   ( -70.10,-111.35) 03/15/2025   07:10:34  ( -70.08,-111.33)    2.48                20
 03/15/2025   08:01:22   (  69.14,  57.36) 03/15/2025   08:00:15  (  69.20,  55.11)   89.48                67
 03/17/2025   22:37:06   (  70.17,-163.00) 03/17/2025   22:37:31  (  70.16,-162.98)    2.17                25
 03/17/2025   23:27:48   ( -70.07,   4.47) 03/17/2025   23:27:01  ( -70.05,   4.51)    2.90                47
 03/20/2025   14:03:18   ( -70.36, 145.17) 03/20/2025   14:04:29  ( -70.31, 145.49)   13.33                71
 03/20/2025   14:53:59   (  70.11, -47.13) 03/20/2025   14:53:58  (  70.08, -47.19)    3.29                 1
 03/20/2025   15:44:41   ( -70.00, 120.35) 03/20/2025   15:43:28  ( -69.98, 120.30)    2.71                73