Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 2 13.  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)
 02/13/2025   22:37:00   (  70.19,-162.95) 02/13/2025   22:37:45  (  70.19,-162.93)    0.97                45
 02/13/2025   23:27:41   ( -70.08,   4.53) 02/13/2025   23:27:15  ( -70.08,   4.55)    0.57                26
 02/16/2025   14:03:28   ( -71.11, 144.01) 02/16/2025   14:04:34  ( -70.99, 146.51)   91.03                66
 02/16/2025   14:53:56   (  70.12, -47.09) 02/16/2025   14:54:15  (  70.12, -47.15)    2.12                19
 02/16/2025   15:44:37   ( -70.01, 120.40) 02/16/2025   15:43:45  ( -70.01, 120.33)    2.52                52
 02/19/2025   06:20:08   ( -70.21, -98.78) 02/19/2025   06:21:16  ( -70.24, -98.75)    3.32                68
 02/19/2025   07:10:53   (  70.12,  68.67) 02/19/2025   07:10:43  (  70.13,  68.74)    2.81                10
 02/19/2025   08:01:29   ( -69.74,-123.44) 02/19/2025   08:00:17  ( -69.80,-124.08)   25.79                72
 02/21/2025   22:37:03   ( -70.16,  17.06) 02/21/2025   22:37:44  ( -70.15,  17.02)    1.91                41
 02/21/2025   23:27:48   (  70.07,-175.50) 02/21/2025   23:27:10  (  70.09,-175.42)    3.65                38
 02/24/2025   14:03:26   (  70.67, -35.30) 02/24/2025   14:04:36  (  70.51, -34.20)   44.07                70
 02/24/2025   14:53:59   ( -70.12, 132.88) 02/24/2025   14:54:11  ( -70.14, 132.88)    1.71                12
 02/24/2025   15:44:44   (  70.04, -59.69) 02/24/2025   15:43:38  (  70.02, -59.64)    2.84                66
 02/27/2025   06:20:13   (  70.17,  81.24) 02/27/2025   06:21:08  (  70.19,  81.20)    1.94                55
 02/27/2025   07:10:55   ( -70.10,-111.32) 02/27/2025   07:10:38  ( -70.09,-111.31)    1.32                17
 02/27/2025   08:01:25   (  69.22,  57.27) 02/27/2025   08:00:17  (  69.30,  55.27)   79.22                68