Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 11 27.  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)
 11/28/2025   22:37:01   (  70.15,-162.98) 11/28/2025   22:38:04  (  70.13,-162.98)    1.66                63
 11/28/2025   23:27:43   ( -70.04,   4.49) 11/28/2025   23:27:34  ( -70.02,   4.50)    2.55                 9
 11/29/2025   00:18:18   (  69.46, 172.67) 11/29/2025   00:17:08  (  69.53, 171.46)   47.83                70
 12/01/2025   14:53:59   (  70.09, -47.14) 12/01/2025   14:54:31  (  70.12, -47.12)    3.01                32
 12/01/2025   15:44:41   ( -69.98, 120.34) 12/01/2025   15:44:01  ( -70.01, 120.36)    3.09                40
 12/04/2025   06:20:19   ( -70.40, -99.18) 12/04/2025   06:21:30  ( -70.30, -98.62)   23.94                71
 12/04/2025   07:10:58   (  70.05,  68.69) 12/04/2025   07:11:00  (  70.02,  68.63)    3.23                 2
 12/04/2025   08:01:40   ( -69.93,-123.82) 12/04/2025   08:00:30  ( -69.92,-123.88)    2.80                70
 12/06/2025   22:37:14   ( -70.15,  16.98) 12/06/2025   22:38:00  ( -70.12,  17.02)    2.93                46
 12/06/2025   23:27:57   (  70.01,-175.50) 12/06/2025   23:27:27  (  70.01,-175.49)    0.59                30
 12/09/2025   14:03:40   (  70.71, -35.48) 12/09/2025   14:04:49  (  70.63, -33.98)   56.03                69
 12/09/2025   14:54:13   ( -70.11, 132.79) 12/09/2025   14:54:27  ( -70.09, 132.86)    3.42                14
 12/09/2025   15:44:56   (  69.97, -59.69) 12/09/2025   15:43:54  (  69.97, -59.65)    1.36                62