Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 21.  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)
 01/21/2024   15:43:03   (  69.97, -59.69) 01/21/2024   15:43:50  (  69.96, -59.71)    1.83                47
 01/21/2024   16:33:44   ( -69.85, 107.82) 01/21/2024   16:33:20  ( -69.85, 107.76)    2.23                24
 01/24/2024   07:59:55   (  69.94,  56.15) 01/24/2024   08:00:17  (  69.94,  56.15)    0.42                22
 01/24/2024   08:50:36   ( -69.81,-136.34) 01/24/2024   08:49:47  ( -69.83,-136.37)    3.07                49
 01/26/2024   23:26:03   ( -70.08,   4.40) 01/26/2024   23:27:15  ( -70.05,   4.55)    6.66                72
 01/27/2024   00:16:46   (  69.91, 171.97) 01/27/2024   00:16:43  (  69.88, 171.96)    3.06                 3
 01/27/2024   01:07:26   ( -69.72, -20.43) 01/27/2024   01:06:13  ( -69.78, -20.56)    7.51                73
 01/29/2024   15:42:53   ( -69.96, 120.37) 01/29/2024   15:43:42  ( -69.96, 120.31)    2.36                49
 01/29/2024   16:33:37   (  69.85, -72.14) 01/29/2024   16:33:09  (  69.85, -72.20)    2.25                28
 02/01/2024   07:09:18   (  70.84,  67.46) 02/01/2024   07:10:25  (  70.71,  69.66)   81.99                67
 02/01/2024   07:59:45   ( -69.96,-123.84) 02/01/2024   08:00:07  ( -69.94,-123.82)    2.04                22
 02/01/2024   08:50:29   (  69.84,  43.64) 02/01/2024   08:49:34  (  69.82,  43.67)    2.31                55
 02/03/2024   23:25:54   (  70.00,-175.43) 02/03/2024   23:27:02  (  69.99,-175.48)    2.42                68
 02/04/2024   00:16:36   ( -69.91,  -7.98) 02/04/2024   00:16:32  ( -69.89,  -8.00)    3.28                 4
 02/04/2024   01:07:14   (  69.48, 159.96) 02/04/2024   01:06:03  (  69.55, 159.18)   31.05                71