Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 8.  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)
 03/09/2025   22:37:06   ( -70.15,  17.04) 03/09/2025   22:37:39  ( -70.14,  16.99)    2.15                33
 03/09/2025   23:27:50   (  70.03,-175.46) 03/09/2025   23:27:06  (  70.04,-175.52)    2.45                44
 03/12/2025   14:03:23   (  70.45, -34.98) 03/12/2025   14:04:35  (  70.36, -34.46)   22.05                72
 03/12/2025   14:54:01   ( -70.15, 132.80) 03/12/2025   14:54:07  ( -70.14, 132.86)    2.66                 6
 03/12/2025   15:44:45   (  70.03, -59.71) 03/12/2025   15:43:34  (  70.03, -59.65)    2.21                71
 03/15/2025   06:20:12   (  70.21,  81.18) 03/15/2025   06:21:04  (  70.21,  81.21)    1.21                52
 03/15/2025   07:10:54   ( -70.11,-111.36) 03/15/2025   07:10:34  ( -70.10,-111.31)    2.30                20
 03/15/2025   08:01:22   (  69.15,  57.35) 03/15/2025   08:00:15  (  69.21,  55.13)   88.16                67
 03/17/2025   22:37:05   (  70.13,-162.94) 03/17/2025   22:37:32  (  70.14,-163.01)    2.84                27
 03/17/2025   23:27:47   ( -70.03,   4.53) 03/17/2025   23:27:02  ( -70.03,   4.48)    2.21                45
 03/20/2025   14:03:18   ( -70.37, 145.15) 03/20/2025   14:04:30  ( -70.32, 145.49)   14.06                72
 03/20/2025   14:53:59   (  70.12, -47.14) 03/20/2025   14:53:58  (  70.14, -47.11)    3.23                 1
 03/20/2025   15:44:41   ( -70.01, 120.34) 03/20/2025   15:43:29  ( -69.99, 120.30)    2.76                72