Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 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)
 05/12/2024   14:52:44   ( -70.10, 132.85) 05/12/2024   14:53:30  ( -70.13, 132.81)    3.28                46
 05/12/2024   15:43:29   (  70.04, -59.74) 05/12/2024   15:42:57  (  70.02, -59.69)    2.52                32
 05/15/2024   06:19:08   (  70.89,  80.05) 05/15/2024   06:20:16  (  70.76,  81.99)   72.54                68
 05/15/2024   07:09:36   ( -70.07,-111.31) 05/15/2024   07:09:56  ( -70.10,-111.34)    3.01                20
 05/15/2024   08:00:21   (  70.01,  56.09) 05/15/2024   07:59:23  (  69.99,  56.15)    3.29                58
 05/17/2024   22:35:47   (  70.20,-163.03) 05/17/2024   22:36:51  (  70.18,-162.96)    3.15                64
 05/17/2024   23:26:28   ( -70.06,   4.50) 05/17/2024   23:26:21  ( -70.07,   4.51)    2.05                 7
 05/18/2024   00:17:05   (  69.57, 172.53) 05/18/2024   00:15:54  (  69.63, 171.55)   38.76                71
 05/20/2024   14:52:38   (  70.14, -47.16) 05/20/2024   14:53:15  (  70.17, -47.09)    3.61                37
 05/20/2024   15:43:19   ( -70.00, 120.38) 05/20/2024   15:42:46  ( -70.00, 120.31)    2.54                33
 05/23/2024   06:18:54   ( -70.74, -99.62) 05/23/2024   06:20:03  ( -70.65, -98.12)   55.77                69
 05/23/2024   07:09:28   (  70.10,  68.69) 05/23/2024   07:09:38  (  70.10,  68.71)    0.84                10
 05/23/2024   08:00:10   ( -70.01,-123.85) 05/23/2024   07:59:08  ( -69.99,-123.81)    2.59                62