Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 4 2.  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)
 04/02/2024   14:52:53   (  70.10, -47.25) 04/02/2024   14:53:53  (  70.09, -47.21)    1.75                60
 04/02/2024   15:43:35   ( -70.00, 120.21) 04/02/2024   15:43:23  ( -69.98, 120.26)    3.19                12
 04/02/2024   16:34:08   (  69.31, -71.46) 04/02/2024   16:32:59  (  69.38, -72.91)   57.65                69
 04/05/2024   07:09:48   (  70.02,  68.64) 04/05/2024   07:10:23  (  70.03,  68.57)    2.88                35
 04/05/2024   08:00:30   ( -69.92,-123.89) 04/05/2024   07:59:53  ( -69.92,-123.95)    2.38                37
 04/07/2024   22:36:08   ( -70.52,  16.31) 04/07/2024   22:37:19  ( -70.42,  17.37)   40.92                71
 04/07/2024   23:26:44   (  70.00,-175.56) 04/07/2024   23:26:52  (  69.99,-175.61)    2.37                 8
 04/08/2024   00:17:26   ( -69.90,  -8.09) 04/08/2024   00:16:22  ( -69.88,  -8.12)    2.29                64
 04/10/2024   14:52:56   ( -70.09, 132.76) 04/10/2024   14:53:53  ( -70.08, 132.76)    1.11                57
 04/10/2024   15:43:39   (  70.00, -59.78) 04/10/2024   15:43:19  (  69.97, -59.75)    2.93                20
 04/10/2024   16:34:09   ( -69.25, 108.62) 04/10/2024   16:33:00  ( -69.26, 106.92)   67.12                69
 04/13/2024   07:09:50   ( -70.04,-111.39) 04/13/2024   07:10:20  ( -70.04,-111.42)    1.18                30
 04/13/2024   08:00:34   (  69.95,  56.06) 04/13/2024   07:59:47  (  69.92,  56.06)    2.82                47
 04/15/2024   22:36:05   (  70.22,-163.21) 04/15/2024   22:37:16  (  70.17,-162.98)   10.35                71
 04/15/2024   23:26:45   ( -70.01,   4.44) 04/15/2024   23:26:47  ( -70.02,   4.43)    1.46                 2
 04/16/2024   00:17:27   (  69.81, 172.05) 04/16/2024   00:16:15  (  69.84, 171.83)    9.34                72