Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 29.  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)
 08/30/2025   06:20:28   ( -70.11, -98.83) 08/30/2025   06:21:24  ( -70.10, -98.87)    2.29                56
 08/30/2025   07:11:12   (  70.02,  68.62) 08/30/2025   07:10:51  (  70.00,  68.63)    2.38                21
 08/30/2025   08:01:41   ( -69.22,-122.89) 08/30/2025   08:00:32  ( -69.28,-124.71)   71.87                69
 09/01/2025   22:37:22   ( -70.09,  16.98) 09/01/2025   22:37:55  ( -70.09,  16.99)    0.87                33
 09/01/2025   23:28:06   (  70.00,-175.57) 09/01/2025   23:27:22  (  69.98,-175.51)    2.83                44
 09/04/2025   14:03:41   (  70.56, -35.30) 09/04/2025   14:04:51  (  70.43, -34.27)   40.80                70
 09/04/2025   14:54:15   ( -70.03, 132.85) 09/04/2025   14:54:26  ( -70.05, 132.82)    2.79                11
 09/04/2025   15:44:59   (  69.93, -59.70) 09/04/2025   15:43:53  (  69.94, -59.69)    1.10                66
 09/07/2025   06:20:27   (  70.13,  81.15) 09/07/2025   06:21:26  (  70.14,  81.20)    2.25                59
 09/07/2025   07:11:09   ( -70.02,-111.37) 09/07/2025   07:10:56  ( -70.04,-111.32)    2.64                13
 09/07/2025   08:01:42   (  69.34,  56.94) 09/07/2025   08:00:33  (  69.37,  55.42)   59.89                69
 09/09/2025   22:37:19   (  70.08,-162.99) 09/09/2025   22:37:55  (  70.10,-162.98)    2.82                36
 09/09/2025   23:28:01   ( -69.97,   4.49) 09/09/2025   23:27:26  ( -69.95,   4.43)    3.37                35