Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 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)
 10/27/2025   22:36:43   (  70.95,-164.17) 10/27/2025   22:37:50  (  70.84,-161.92)   82.73                67
 10/27/2025   23:27:09   ( -70.06,   4.59) 10/27/2025   23:27:32  ( -70.07,   4.58)    1.55                23
 10/28/2025   00:17:54   (  69.97, 172.04) 10/28/2025   00:16:59  (  69.97, 172.08)    1.61                55
 10/30/2025   14:53:20   (  70.25, -47.23) 10/30/2025   14:54:32  (  70.19, -47.01)   10.78                72
 10/30/2025   15:43:59   ( -70.03, 120.42) 10/30/2025   15:44:03  ( -70.03, 120.39)    1.16                 4
 10/30/2025   16:34:43   (  69.89, -72.06) 10/30/2025   16:33:30  (  69.92, -72.11)    3.78                73
 11/02/2025   07:10:07   (  70.13,  68.74) 11/02/2025   07:11:02  (  70.12,  68.76)    2.16                55
 11/02/2025   08:00:48   ( -70.01,-123.76) 11/02/2025   08:00:32  ( -70.01,-123.75)    0.33                16
 11/02/2025   08:51:19   (  69.19,  44.75) 11/02/2025   08:50:11  (  69.24,  42.84)   75.66                68
 11/04/2025   23:26:56   (  70.08,-175.38) 11/04/2025   23:27:32  (  70.06,-175.43)    2.58                36
 11/05/2025   00:17:37   ( -69.95,  -7.87) 11/05/2025   00:17:02  ( -69.96,  -7.94)    2.91                35
 11/07/2025   14:53:15   ( -70.88, 131.82) 11/07/2025   14:54:23  ( -70.75, 133.82)   74.53                68
 11/07/2025   15:43:45   (  70.03, -59.52) 11/07/2025   15:44:01  (  70.03, -59.59)    2.73                16
 11/07/2025   16:34:27   ( -69.95, 107.92) 11/07/2025   16:33:31  ( -69.93, 107.90)    2.28                56