Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 11 25.  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)
 11/26/2025   06:20:16   (  70.96,  79.96) 11/26/2025   06:21:23  (  70.83,  82.16)   81.58                67
 11/26/2025   07:10:43   ( -70.07,-111.30) 11/26/2025   07:11:05  ( -70.06,-111.34)    2.29                22
 11/26/2025   08:01:27   (  69.96,  56.18) 11/26/2025   08:00:32  (  69.95,  56.16)    1.10                55
 11/28/2025   22:37:00   (  70.11,-162.91) 11/28/2025   22:38:04  (  70.12,-162.99)    3.62                64
 11/28/2025   23:27:43   ( -70.05,   4.48) 11/28/2025   23:27:33  ( -70.07,   4.56)    3.42                10
 11/29/2025   00:18:18   (  69.47, 172.66) 11/29/2025   00:17:08  (  69.52, 171.45)   47.60                70
 12/01/2025   14:54:00   (  70.10, -47.15) 12/01/2025   14:54:32  (  70.10, -47.13)    0.84                32
 12/01/2025   15:44:42   ( -69.99, 120.34) 12/01/2025   15:44:02  ( -70.00, 120.35)    1.32                40
 12/04/2025   06:20:18   ( -70.35, -99.09) 12/04/2025   06:21:30  ( -70.28, -98.64)   18.70                72
 12/04/2025   07:10:58   (  70.05,  68.68) 12/04/2025   07:10:59  (  70.06,  68.69)    1.34                 1
 12/04/2025   08:01:40   ( -69.93,-123.82) 12/04/2025   08:00:29  ( -69.95,-123.83)    2.98                71
 12/06/2025   22:37:13   ( -70.09,  17.07) 12/06/2025   22:38:00  ( -70.10,  16.99)    3.14                47
 12/06/2025   23:27:57   (  70.00,-175.49) 12/06/2025   23:27:27  (  69.99,-175.52)    2.12                30