Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 5.  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)
 03/07/2025   06:20:12   ( -70.20, -98.81) 03/07/2025   06:21:10  ( -70.19, -98.83)    1.61                58
 03/07/2025   07:10:56   (  70.07,  68.70) 03/07/2025   07:10:37  (  70.08,  68.67)    1.68                19
 03/07/2025   08:01:26   ( -69.36,-122.94) 03/07/2025   08:00:17  ( -69.42,-124.60)   65.65                69
 03/09/2025   22:37:06   ( -70.14,  17.06) 03/09/2025   22:37:39  ( -70.16,  17.01)    2.96                33
 03/09/2025   23:27:51   (  70.07,-175.53) 03/09/2025   23:27:06  (  70.05,-175.50)    2.36                45
 03/12/2025   14:03:23   (  70.49, -35.05) 03/12/2025   14:04:34  (  70.37, -34.44)   26.66                71
 03/12/2025   14:54:00   ( -70.14, 132.82) 03/12/2025   14:54:06  ( -70.16, 132.89)    2.92                 6
 03/12/2025   15:44:44   (  70.03, -59.69) 03/12/2025   15:43:33  (  70.04, -59.63)    2.99                71
 03/15/2025   06:20:12   (  70.20,  81.19) 03/15/2025   06:21:04  (  70.22,  81.23)    2.63                52
 03/15/2025   07:10:54   ( -70.10,-111.35) 03/15/2025   07:10:34  ( -70.12,-111.29)    2.83                20
 03/15/2025   08:01:22   (  69.14,  57.36) 03/15/2025   08:00:15  (  69.23,  55.15)   88.08                67
 03/17/2025   22:37:05   (  70.12,-162.93) 03/17/2025   22:37:32  (  70.14,-163.00)    3.28                27
 03/17/2025   23:27:47   ( -70.02,   4.55) 03/17/2025   23:27:02  ( -70.04,   4.49)    3.21                45