Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 1 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)
 01/15/2025   14:03:40   ( -70.53, 144.92) 01/15/2025   14:04:51  ( -70.40, 145.63)   30.33                71
 01/15/2025   14:54:19   (  70.16, -47.18) 01/15/2025   14:54:21  (  70.14, -47.11)    3.55                 2
 01/15/2025   15:45:00   ( -70.02, 120.34) 01/15/2025   15:43:51  ( -70.02, 120.37)    0.91                69
 01/18/2025   06:20:21   ( -70.20, -98.76) 01/18/2025   06:21:22  ( -70.19, -98.79)    1.61                61
 01/18/2025   07:11:05   (  70.09,  68.72) 01/18/2025   07:10:49  (  70.09,  68.70)    0.63                16
 01/18/2025   08:01:37   ( -69.48,-123.06) 01/18/2025   08:00:27  ( -69.54,-124.42)   53.57                70
 01/20/2025   22:37:09   ( -70.20,  17.04) 01/20/2025   22:37:50  ( -70.17,  17.06)    3.21                41
 01/20/2025   23:27:53   (  70.08,-175.47) 01/20/2025   23:27:17  (  70.06,-175.45)    2.42                36
 01/23/2025   14:03:29   (  71.01, -35.80) 01/23/2025   14:04:36  (  70.88, -33.63)   79.95                67
 01/23/2025   14:53:56   ( -70.15, 132.92) 01/23/2025   14:54:17  ( -70.17, 132.94)    2.51                21
 01/23/2025   15:44:40   (  70.03, -59.60) 01/23/2025   15:43:44  (  70.05, -59.57)    3.06                56
 01/26/2025   06:20:03   (  70.29,  81.18) 01/26/2025   06:21:14  (  70.24,  81.30)    7.32                71
 01/26/2025   07:10:43   ( -70.10,-111.22) 01/26/2025   07:10:44  ( -70.13,-111.22)    3.22                 1
 01/26/2025   08:01:25   (  69.88,  56.42) 01/26/2025   08:00:13  (  69.91,  56.11)   12.27                72