Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 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)
 01/13/2024   15:43:07   ( -69.96, 120.31) 01/13/2024   15:43:54  ( -69.98, 120.30)    2.21                47
 01/13/2024   16:33:52   (  69.88, -72.27) 01/13/2024   16:33:21  (  69.87, -72.20)    3.12                31
 01/16/2024   07:09:34   (  70.85,  67.36) 01/16/2024   07:10:41  (  70.74,  69.66)   85.19                67
 01/16/2024   08:00:00   ( -69.93,-123.87) 01/16/2024   08:00:24  ( -69.92,-123.90)    1.62                24
 01/16/2024   08:50:44   (  69.80,  43.63) 01/16/2024   08:49:51  (  69.81,  43.59)    1.54                53
 01/18/2024   23:26:11   (  69.99,-175.50) 01/18/2024   23:27:23  (  69.99,-175.56)    2.39                72
 01/19/2024   00:16:53   ( -69.91,  -8.06) 01/19/2024   00:16:53  ( -69.88,  -8.08)    3.05                 0
 01/19/2024   01:07:34   (  69.63, 159.67) 01/19/2024   01:06:21  (  69.71, 159.34)   15.87                73
 01/21/2024   15:43:03   (  69.98, -59.71) 01/21/2024   15:43:50  (  69.96, -59.71)    2.25                47
 01/21/2024   16:33:44   ( -69.85, 107.82) 01/21/2024   16:33:20  ( -69.86, 107.78)    2.16                24
 01/24/2024   07:59:55   (  69.94,  56.15) 01/24/2024   08:00:17  (  69.96,  56.17)    2.89                22
 01/24/2024   08:50:37   ( -69.85,-136.40) 01/24/2024   08:49:47  ( -69.86,-136.34)    2.77                50
 01/26/2024   23:26:05   ( -70.12,   4.35) 01/26/2024   23:27:16  ( -70.09,   4.61)   10.00                71
 01/27/2024   00:16:47   (  69.90, 171.99) 01/27/2024   00:16:44  (  69.92, 172.01)    2.55                 3
 01/27/2024   01:07:28   ( -69.76, -20.48) 01/27/2024   01:06:15  ( -69.76, -20.58)    3.79                73