Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 28.  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)
 05/28/2025   21:46:28   (  70.94,-151.58) 05/28/2025   21:47:35  (  70.86,-149.47)   77.22                67
 05/28/2025   22:36:56   ( -70.14,  17.02) 05/28/2025   22:37:16  ( -70.14,  17.09)    2.61                20
 05/28/2025   23:27:40   (  70.00,-175.45) 05/28/2025   23:26:44  (  69.99,-175.48)    1.33                56
 05/31/2025   14:03:11   (  70.18, -34.59) 05/31/2025   14:04:17  (  70.15, -34.65)    3.28                66
 05/31/2025   14:53:53   ( -70.11, 132.83) 05/31/2025   14:53:46  ( -70.09, 132.90)    3.27                 7
 05/31/2025   15:44:30   (  69.59, -59.10) 05/31/2025   15:43:19  (  69.66, -60.06)   37.92                71
 06/03/2025   06:20:08   (  70.15,  81.21) 06/03/2025   06:20:46  (  70.14,  81.21)    1.63                38
 06/03/2025   07:10:49   ( -70.03,-111.29) 06/03/2025   07:10:16  ( -70.03,-111.31)    0.87                33
 06/05/2025   21:46:31   ( -70.79,  28.64) 06/05/2025   21:47:40  ( -70.64,  30.21)   59.84                69
 06/05/2025   22:37:04   (  70.08,-162.92) 06/05/2025   22:37:15  (  70.10,-162.95)    2.88                11
 06/05/2025   23:27:46   ( -70.01,   4.50) 06/05/2025   23:26:45  ( -69.99,   4.53)    2.01                61
 06/08/2025   14:03:15   ( -70.14, 145.43) 06/08/2025   14:04:16  ( -70.16, 145.38)    2.47                61
 06/08/2025   14:54:00   (  70.06, -47.13) 06/08/2025   14:53:43  (  70.04, -47.14)    1.72                17
 06/08/2025   15:44:31   ( -69.41, 121.15) 06/08/2025   15:43:21  ( -69.50, 119.74)   55.90                70