Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 1 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)
 01/10/2025   06:20:43   (  70.20,  81.17) 01/10/2025   06:21:23  (  70.17,  81.18)    3.34                40
 01/10/2025   07:11:24   ( -70.06,-111.30) 01/10/2025   07:10:53  ( -70.06,-111.35)    1.84                31
 01/12/2025   22:37:31   (  70.16,-162.98) 01/12/2025   22:37:53  (  70.13,-162.99)    3.45                22
 01/12/2025   23:28:12   ( -70.02,   4.55) 01/12/2025   23:27:23  ( -70.02,   4.48)    2.52                49
 01/15/2025   14:03:39   ( -70.51, 144.96) 01/15/2025   14:04:51  ( -70.38, 145.60)   28.03                72
 01/15/2025   14:54:18   (  70.14, -47.15) 01/15/2025   14:54:21  (  70.11, -47.14)    3.06                 3
 01/15/2025   15:44:59   ( -70.00, 120.38) 01/15/2025   15:43:51  ( -70.00, 120.34)    1.62                68
 01/18/2025   06:20:22   ( -70.24, -98.81) 01/18/2025   06:21:22  ( -70.22, -98.76)    3.19                60
 01/18/2025   07:11:06   (  70.12,  68.67) 01/18/2025   07:10:49  (  70.11,  68.73)    3.33                17
 01/18/2025   08:01:37   ( -69.46,-123.03) 01/18/2025   08:00:27  ( -69.56,-124.39)   54.22                70
 01/20/2025   22:37:09   ( -70.18,  17.07) 01/20/2025   22:37:50  ( -70.17,  17.07)    0.88                41
 01/20/2025   23:27:53   (  70.07,-175.45) 01/20/2025   23:27:17  (  70.06,-175.44)    1.06                36