Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 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)
 03/31/2025   06:20:00   (  70.22,  81.18) 03/31/2025   06:20:56  (  70.22,  81.22)    1.23                56
 03/31/2025   07:10:42   ( -70.11,-111.33) 03/31/2025   07:10:26  ( -70.11,-111.31)    0.82                16
 03/31/2025   08:01:13   (  69.33,  57.13) 03/31/2025   08:00:05  (  69.34,  55.29)   72.49                68
 04/02/2025   22:36:51   (  70.17,-162.96) 04/02/2025   22:37:26  (  70.16,-162.99)    1.70                35
 04/02/2025   23:27:33   ( -70.06,   4.53) 04/02/2025   23:26:56  ( -70.05,   4.49)    1.83                37
 04/05/2025   14:03:10   ( -70.85, 144.43) 04/05/2025   14:04:19  ( -70.71, 146.05)   61.11                69
 04/05/2025   14:53:42   (  70.14, -47.13) 04/05/2025   14:53:54  (  70.17, -47.11)    3.11                12
 04/05/2025   15:44:24   ( -70.02, 120.37) 04/05/2025   15:43:25  ( -70.00, 120.30)    3.23                59
 04/08/2025   06:19:49   ( -70.25, -98.82) 04/08/2025   06:20:54  ( -70.24, -98.77)    2.53                65
 04/08/2025   07:10:32   (  70.12,  68.68) 04/08/2025   07:10:21  (  70.13,  68.72)    1.39                11
 04/08/2025   08:01:08   ( -69.68,-123.34) 04/08/2025   07:59:56  ( -69.75,-124.18)   33.21                72
 04/10/2025   22:36:39   ( -70.19,  17.05) 04/10/2025   22:37:21  ( -70.21,  17.08)    2.25                42
 04/10/2025   23:27:22   (  70.07,-175.45) 04/10/2025   23:26:48  (  70.10,-175.44)    2.75                34