Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 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)
 03/25/2025   22:36:59   ( -70.14,  17.06) 03/25/2025   22:37:29  ( -70.14,  16.98)    3.01                30
 03/25/2025   23:27:42   (  70.05,-175.48) 03/25/2025   23:26:55  (  70.03,-175.52)    2.50                47
 03/28/2025   14:03:12   (  70.43, -34.93) 03/28/2025   14:04:23  (  70.35, -34.46)   19.84                71
 03/28/2025   14:53:50   ( -70.11, 132.89) 03/28/2025   14:53:55  ( -70.13, 132.86)    2.41                 5
 03/28/2025   15:44:34   (  70.02, -59.66) 03/28/2025   15:43:22  (  70.02, -59.65)    0.47                72
 03/31/2025   06:20:00   (  70.22,  81.19) 03/31/2025   06:20:51  (  70.22,  81.24)    1.81                51
 03/31/2025   07:10:42   ( -70.10,-111.32) 03/31/2025   07:10:21  ( -70.11,-111.28)    1.58                21
 03/31/2025   08:01:09   (  69.11,  57.44) 03/31/2025   08:00:03  (  69.17,  55.08)   93.45                66
 04/02/2025   22:36:51   (  70.18,-162.97) 04/02/2025   22:37:16  (  70.17,-162.93)    1.80                25
 04/02/2025   23:27:33   ( -70.06,   4.53) 04/02/2025   23:26:46  ( -70.07,   4.55)    1.38                47
 04/05/2025   14:03:00   ( -70.34, 145.25) 04/05/2025   14:04:12  ( -70.29, 145.49)   11.04                72
 04/05/2025   14:53:41   (  70.11, -47.08) 04/05/2025   14:53:40  (  70.11, -47.11)    1.14                 1
 04/05/2025   15:44:22   ( -69.99, 120.42) 04/05/2025   15:43:09  ( -70.01, 120.37)    3.17                73