Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 9.  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)
 01/10/2024   23:26:14   ( -70.00,   4.46) 01/10/2024   23:27:24  ( -69.99,   4.45)    0.74                70
 01/11/2024   00:16:58   (  69.88, 171.96) 01/11/2024   00:16:51  (  69.89, 171.95)    1.29                 7
 01/11/2024   01:07:36   ( -69.58, -20.29) 01/11/2024   01:06:23  ( -69.67, -20.72)   19.08                73
 01/13/2024   15:43:07   ( -69.95, 120.31) 01/13/2024   15:43:55  ( -69.93, 120.24)    3.58                48
 01/13/2024   16:33:51   (  69.83, -72.20) 01/13/2024   16:33:22  (  69.82, -72.27)    2.87                29
 01/16/2024   07:09:35   (  70.90,  67.28) 01/16/2024   07:10:41  (  70.77,  69.71)   89.91                66
 01/16/2024   08:00:00   ( -69.92,-123.85) 01/16/2024   08:00:25  ( -69.90,-123.93)    3.33                25
 01/16/2024   08:50:44   (  69.80,  43.63) 01/16/2024   08:49:52  (  69.79,  43.56)    2.98                52
 01/18/2024   23:26:12   (  70.03,-175.56) 01/18/2024   23:27:24  (  70.00,-175.54)    3.04                72
 01/19/2024   00:16:53   ( -69.89,  -8.03) 01/19/2024   00:16:54  ( -69.90,  -8.05)    1.71                 1
 01/19/2024   01:07:35   (  69.66, 159.61) 01/19/2024   01:06:22  (  69.73, 159.36)   12.15                73
 01/21/2024   15:43:03   (  69.95, -59.67) 01/21/2024   15:43:52  (  69.97, -59.70)    2.37                49
 01/21/2024   16:33:45   ( -69.86, 107.79) 01/21/2024   16:33:22  ( -69.87, 107.79)    0.82                23