Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 20.  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)
 02/21/2025   22:37:04   ( -70.19,  17.01) 02/21/2025   22:37:43  ( -70.19,  17.07)    2.25                39
 02/21/2025   23:27:48   (  70.04,-175.45) 02/21/2025   23:27:11  (  70.03,-175.51)    2.60                37
 02/24/2025   14:03:24   (  70.60, -35.18) 02/24/2025   14:04:35  (  70.48, -34.26)   36.84                71
 02/24/2025   14:53:59   ( -70.16, 132.82) 02/24/2025   14:54:09  ( -70.15, 132.90)    3.44                10
 02/24/2025   15:44:43   (  70.02, -59.66) 02/24/2025   15:43:36  (  70.04, -59.62)    2.30                67
 02/27/2025   06:20:13   (  70.22,  81.17) 02/27/2025   06:21:05  (  70.22,  81.25)    3.01                52
 02/27/2025   07:10:54   ( -70.10,-111.32) 02/27/2025   07:10:35  ( -70.11,-111.27)    2.44                19
 02/27/2025   08:01:23   (  69.16,  57.35) 02/27/2025   08:00:16  (  69.22,  55.17)   86.60                67
 03/01/2025   22:37:07   (  70.12,-162.91) 03/01/2025   22:37:31  (  70.13,-162.97)    2.84                24
 03/01/2025   23:27:49   ( -70.04,   4.53) 03/01/2025   23:27:01  ( -70.03,   4.51)    1.85                48
 03/04/2025   14:03:18   ( -70.21, 145.41) 03/04/2025   14:04:28  ( -70.23, 145.42)    2.50                70
 03/04/2025   14:54:02   (  70.09, -47.09) 03/04/2025   14:53:55  (  70.11, -47.10)    2.88                 7
 03/04/2025   15:44:40   ( -69.79, 120.67) 03/04/2025   15:43:28  ( -69.84, 120.16)   20.60                72