Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 2.  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)
 10/03/2025   22:37:00   ( -70.11,  17.03) 10/03/2025   22:38:02  ( -70.10,  16.99)    2.26                62
 10/03/2025   23:27:45   (  70.03,-175.52) 10/03/2025   23:27:29  (  70.00,-175.50)    3.12                16
 10/04/2025   00:18:17   ( -69.44,  -7.34) 10/04/2025   00:17:06  ( -69.50,  -8.55)   48.03                71
 10/06/2025   14:53:51   ( -70.06, 132.90) 10/06/2025   14:54:33  ( -70.08, 132.84)    3.04                42
 10/06/2025   15:44:36   (  69.97, -59.66) 10/06/2025   15:44:00  (  69.97, -59.66)    0.29                36
 10/09/2025   06:20:15   (  70.87,  80.08) 10/09/2025   06:21:22  (  70.77,  82.10)   74.88                67
 10/09/2025   07:10:43   ( -70.07,-111.33) 10/09/2025   07:11:03  ( -70.06,-111.31)    1.77                20
 10/09/2025   08:01:27   (  69.93,  56.19) 10/09/2025   08:00:30  (  69.95,  56.18)    1.92                57
 10/11/2025   22:36:52   (  70.16,-163.00) 10/11/2025   22:38:01  (  70.15,-162.93)    3.09                69
 10/11/2025   23:27:33   ( -70.05,   4.50) 10/11/2025   23:27:31  ( -70.05,   4.56)    2.31                 2
 10/12/2025   00:18:13   (  69.70, 172.33) 10/12/2025   00:17:01  (  69.77, 171.81)   21.32                72
 10/14/2025   14:53:42   (  70.10, -47.12) 10/14/2025   14:54:30  (  70.08, -47.14)    2.45                48
 10/14/2025   15:44:23   ( -69.98, 120.38) 10/14/2025   15:44:00  ( -69.98, 120.35)    1.35                23