Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 6 4.  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)
 06/05/2025   21:46:30   ( -70.77,  28.68) 06/05/2025   21:47:39  ( -70.66,  30.23)   58.20                69
 06/05/2025   22:37:04   (  70.10,-162.95) 06/05/2025   22:37:14  (  70.12,-162.92)    2.84                10
 06/05/2025   23:27:45   ( -69.98,   4.54) 06/05/2025   23:26:44  ( -70.00,   4.55)    2.24                61
 06/08/2025   14:03:14   ( -70.14, 145.45) 06/08/2025   14:04:15  ( -70.15, 145.38)    3.33                61
 06/08/2025   14:53:59   (  70.04, -47.10) 06/08/2025   14:53:42  (  70.05, -47.13)    1.24                17
 06/08/2025   15:44:30   ( -69.40, 121.17) 06/08/2025   15:43:20  ( -69.50, 119.74)   56.61                70
 06/11/2025   06:20:11   ( -70.14, -98.80) 06/11/2025   06:20:43  ( -70.12, -98.78)    2.41                32
 06/11/2025   07:10:55   (  70.00,  68.73) 06/11/2025   07:10:10  (  70.01,  68.71)    1.81                45
 06/13/2025   21:46:28   (  70.32,-150.64) 06/13/2025   21:47:39  (  70.28,-150.29)   13.92                71
 06/13/2025   22:37:06   ( -70.05,  17.11) 06/13/2025   22:37:11  ( -70.06,  17.03)    3.51                 5
 06/13/2025   23:27:51   (  69.96,-175.45) 06/13/2025   23:26:38  (  69.95,-175.48)    1.45                73
 06/16/2025   14:03:21   (  70.14, -34.58) 06/16/2025   14:04:08  (  70.15, -34.59)    1.14                47
 06/16/2025   14:54:03   ( -70.07, 132.85) 06/16/2025   14:53:38  ( -70.04, 132.90)    3.33                25