Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 11 24.  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   (  70.94,  80.00) 11/26/2025   06:21:23  (  70.85,  82.20)   80.89                67
 11/26/2025   07:10:44   ( -70.10,-111.35) 11/26/2025   07:11:05  ( -70.08,-111.30)    2.71                21
 11/26/2025   08:01:28   (  69.99,  56.14) 11/26/2025   08:00:32  (  69.98,  56.20)    2.64                56
 11/28/2025   22:37:00   (  70.14,-162.96) 11/28/2025   22:38:03  (  70.15,-162.95)    1.70                63
 11/28/2025   23:27:42   ( -70.03,   4.52) 11/28/2025   23:27:33  ( -70.04,   4.53)    1.60                 9
 11/29/2025   00:18:18   (  69.50, 172.61) 11/29/2025   00:17:07  (  69.55, 171.49)   44.12                71
 12/01/2025   14:53:59   (  70.08, -47.12) 12/01/2025   14:54:32  (  70.09, -47.16)    1.63                33
 12/01/2025   15:44:41   ( -69.97, 120.37) 12/01/2025   15:44:02  ( -69.98, 120.32)    2.31                39
 12/04/2025   06:20:19   ( -70.39, -99.15) 12/04/2025   06:21:31  ( -70.27, -98.65)   22.50                72
 12/04/2025   07:10:58   (  70.03,  68.71) 12/04/2025   07:11:00  (  70.05,  68.67)    2.31                 2
 12/04/2025   08:01:41   ( -69.96,-123.87) 12/04/2025   08:00:30  ( -69.95,-123.84)    2.45                71
 12/06/2025   22:37:14   ( -70.13,  17.01) 12/06/2025   22:38:01  ( -70.10,  16.99)    2.96                47
 12/06/2025   23:27:57   (  69.99,-175.47) 12/06/2025   23:27:28  (  69.99,-175.53)    2.14                29