Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 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)
 03/28/2025   14:03:12   (  70.43, -34.92) 03/28/2025   14:04:23  (  70.35, -34.45)   19.20                71
 03/28/2025   14:53:50   ( -70.11, 132.89) 03/28/2025   14:53:55  ( -70.13, 132.86)    2.68                 5
 03/28/2025   15:44:34   (  70.01, -59.65) 03/28/2025   15:43:22  (  70.02, -59.65)    1.22                72
 03/31/2025   06:20:00   (  70.21,  81.20) 03/31/2025   06:20:51  (  70.22,  81.24)    2.13                51
 03/31/2025   07:10:42   ( -70.10,-111.31) 03/31/2025   07:10:21  ( -70.11,-111.28)    1.92                21
 03/31/2025   08:01:09   (  69.10,  57.45) 03/31/2025   08:00:03  (  69.17,  55.09)   93.86                66
 04/02/2025   22:36:51   (  70.17,-162.95) 04/02/2025   22:37:16  (  70.18,-162.92)    2.26                25
 04/02/2025   23:27:33   ( -70.05,   4.54) 04/02/2025   23:26:46  ( -70.07,   4.56)    2.87                47
 04/05/2025   14:02:59   ( -70.33, 145.27) 04/05/2025   14:04:11  ( -70.30, 145.50)    9.11                72
 04/05/2025   14:53:41   (  70.14, -47.13) 04/05/2025   14:53:39  (  70.13, -47.09)    2.18                 2
 04/05/2025   15:44:22   ( -69.97, 120.45) 04/05/2025   15:43:10  ( -69.97, 120.31)    5.40                72
 04/08/2025   06:19:48   ( -70.21, -98.76) 04/08/2025   06:20:35  ( -70.18, -98.76)    3.70                47
 04/08/2025   07:10:31   (  70.09,  68.74) 04/08/2025   07:10:02  (  70.06,  68.71)    3.24                29