Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 6 20.  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)
 06/21/2024   14:02:46   ( -70.78, 144.42) 06/21/2024   14:03:55  ( -70.64, 146.06)   62.32                69
 06/21/2024   14:53:19   (  70.07, -47.15) 06/21/2024   14:53:31  (  70.05, -47.16)    2.79                12
 06/21/2024   15:44:00   ( -69.94, 120.37) 06/21/2024   15:43:01  ( -69.93, 120.31)    2.19                59
 06/24/2024   06:19:31   ( -70.12, -98.77) 06/24/2024   06:20:34  ( -70.15, -98.78)    3.24                63
 06/24/2024   07:10:16   (  70.05,  68.65) 06/24/2024   07:10:01  (  70.05,  68.72)    2.45                15
 06/24/2024   08:00:49   ( -69.49,-123.20) 06/24/2024   07:59:38  ( -69.56,-124.33)   44.51                71
 06/26/2024   22:36:29   ( -70.10,  17.03) 06/26/2024   22:37:06  ( -70.08,  17.00)    2.56                37
 06/26/2024   23:27:13   (  69.98,-175.47) 06/26/2024   23:26:33  (  69.97,-175.51)    1.31                40
 06/29/2024   14:02:52   (  70.54, -35.22) 06/29/2024   14:04:02  (  70.42, -34.26)   38.31                70
 06/29/2024   14:53:26   ( -70.03, 132.90) 06/29/2024   14:53:37  ( -70.04, 132.82)    2.86                11
 06/29/2024   15:44:10   (  69.91, -59.61) 06/29/2024   15:43:04  (  69.93, -59.69)    3.45                66
 07/02/2024   06:19:42   (  70.12,  81.21) 07/02/2024   06:20:37  (  70.14,  81.21)    1.87                55
 07/02/2024   07:10:24   ( -70.02,-111.33) 07/02/2024   07:10:07  ( -70.03,-111.31)    1.16                17
 07/02/2024   08:00:54   (  69.16,  57.24) 07/02/2024   07:59:47  (  69.20,  55.21)   80.41                67