Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 14.  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)
 05/15/2025   14:02:59   (  70.36, -34.80) 05/15/2025   14:04:10  (  70.32, -34.42)   14.84                71
 05/15/2025   14:53:38   ( -70.11, 132.89) 05/15/2025   14:53:42  ( -70.09, 132.89)    1.98                 4
 05/15/2025   15:44:22   (  69.99, -59.61) 05/15/2025   15:43:09  (  69.99, -59.61)    0.60                73
 05/18/2025   06:19:54   (  70.20,  81.21) 05/18/2025   06:20:42  (  70.17,  81.25)    3.05                48
 05/18/2025   07:10:35   ( -70.06,-111.27) 05/18/2025   07:10:12  ( -70.06,-111.28)    0.59                23
 05/20/2025   21:46:24   ( -71.16,  28.09) 05/20/2025   21:47:30  ( -71.04,  30.79)   98.38                66
 05/20/2025   22:36:50   (  70.09,-162.88) 05/20/2025   22:37:12  (  70.11,-162.95)    3.55                22
 05/20/2025   23:27:32   ( -70.01,   4.57) 05/20/2025   23:26:42  ( -70.01,   4.53)    1.40                50
 05/23/2025   14:03:02   ( -70.18, 145.45) 05/23/2025   14:04:13  ( -70.20, 145.41)    2.90                71
 05/23/2025   14:53:47   (  70.10, -47.13) 05/23/2025   14:53:40  (  70.09, -47.10)    2.03                 7
 05/23/2025   15:44:25   ( -69.81, 120.63) 05/23/2025   15:43:12  ( -69.87, 120.23)   16.84                73
 05/26/2025   06:19:59   ( -70.14, -98.74) 05/26/2025   06:20:42  ( -70.15, -98.76)    2.00                43
 05/26/2025   07:10:44   (  70.06,  68.68) 05/26/2025   07:10:09  (  70.04,  68.72)    3.04                35