Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 3 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)
 03/12/2024   07:09:27   ( -70.08,-111.40) 03/12/2024   07:10:38  ( -70.06,-111.38)    2.32                71
 03/12/2024   08:00:11   (  69.96,  56.09) 03/12/2024   08:00:05  (  69.96,  56.12)    1.25                 6
 03/12/2024   08:50:50   ( -69.71,-136.22) 03/12/2024   08:49:37  ( -69.73,-136.56)   13.42                73
 03/14/2024   23:26:25   ( -70.05,   4.41) 03/14/2024   23:27:06  ( -70.05,   4.49)    2.93                41
 03/15/2024   00:17:08   (  69.88, 171.97) 03/15/2024   00:16:34  (  69.90, 171.91)    2.92                34
 03/17/2024   14:52:49   (  70.55, -47.92) 03/17/2024   14:53:59  (  70.41, -46.76)   46.19                70
 03/17/2024   15:43:22   ( -69.97, 120.29) 03/17/2024   15:43:35  ( -69.96, 120.24)    1.96                13
 03/17/2024   16:34:06   (  69.86, -72.24) 03/17/2024   16:33:02  (  69.86, -72.26)    1.06                64
 03/20/2024   07:09:37   (  70.06,  68.60) 03/20/2024   07:10:31  (  70.06,  68.63)    1.41                54
 03/20/2024   08:00:19   ( -69.96,-123.93) 03/20/2024   08:00:01  ( -69.95,-123.89)    1.57                18
 03/20/2024   08:50:48   (  69.06,  44.69) 03/20/2024   08:49:41  (  69.12,  42.64)   81.61                67
 03/22/2024   23:26:34   (  70.01,-175.56) 03/22/2024   23:26:58  (  70.02,-175.54)    1.35                24
 03/23/2024   00:17:16   ( -69.90,  -8.08) 03/23/2024   00:16:28  ( -69.92,  -8.06)    1.73                48