Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 10.  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   ( -69.98,   4.49) 01/10/2024   23:27:24  ( -70.01,   4.48)    3.38                70
 01/11/2024   00:16:59   (  69.91, 171.91) 01/11/2024   00:16:51  (  69.91, 171.97)    2.63                 8
 01/11/2024   01:07:36   ( -69.57, -20.27) 01/11/2024   01:06:24  ( -69.63, -20.77)   20.85                72
 01/13/2024   15:43:07   ( -69.94, 120.34) 01/13/2024   15:43:55  ( -69.95, 120.26)    3.06                48
 01/13/2024   16:33:52   (  69.87, -72.25) 01/13/2024   16:33:22  (  69.84, -72.25)    3.39                30
 01/16/2024   07:09:35   (  70.88,  67.30) 01/16/2024   07:10:41  (  70.78,  69.73)   89.22                66
 01/16/2024   08:00:01   ( -69.96,-123.91) 01/16/2024   08:00:24  ( -69.97,-123.84)    3.02                23
 01/16/2024   08:50:45   (  69.84,  43.58) 01/16/2024   08:49:51  (  69.85,  43.65)    3.49                54
 01/18/2024   23:26:11   (  70.02,-175.54) 01/18/2024   23:27:23  (  70.00,-175.54)    1.35                72
 01/19/2024   00:16:52   ( -69.88,  -8.01) 01/19/2024   00:16:53  ( -69.90,  -8.05)    3.12                 1
 01/19/2024   01:07:34   (  69.65, 159.63) 01/19/2024   01:06:22  (  69.68, 159.29)   13.45                72
 01/21/2024   15:43:03   (  69.95, -59.65) 01/21/2024   15:43:52  (  69.97, -59.71)    2.92                49
 01/21/2024   16:33:45   ( -69.86, 107.80) 01/21/2024   16:33:22  ( -69.87, 107.78)    0.90                23