Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 4 22.  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)
 04/23/2024   22:36:03   ( -70.18,  16.87) 04/23/2024   22:37:15  ( -70.15,  16.96)    4.92                72
 04/23/2024   23:26:46   (  70.02,-175.57) 04/23/2024   23:26:42  (  70.04,-175.54)    3.11                 4
 04/24/2024   00:17:26   ( -69.82,  -7.95) 04/24/2024   00:16:13  ( -69.88,  -8.14)    9.79                73
 04/26/2024   14:52:56   ( -70.12, 132.75) 04/26/2024   14:53:43  ( -70.11, 132.79)    1.73                47
 04/26/2024   15:43:40   (  70.01, -59.78) 04/26/2024   15:43:10  (  70.00, -59.72)    2.49                30
 04/29/2024   06:19:21   (  70.92,  79.93) 04/29/2024   06:20:28  (  70.82,  82.09)   79.20                67
 04/29/2024   07:09:49   ( -70.08,-111.41) 04/29/2024   07:10:10  ( -70.06,-111.41)    2.92                21
 04/29/2024   08:00:32   (  69.92,  56.14) 04/29/2024   07:59:37  (  69.94,  56.08)    3.00                55
 05/01/2024   22:35:59   (  70.12,-163.00) 05/01/2024   22:37:05  (  70.14,-163.03)    2.83                66
 05/01/2024   23:26:41   ( -70.02,   4.47) 05/01/2024   23:26:35  ( -70.03,   4.45)    1.93                 6
 05/02/2024   00:17:18   (  69.54, 172.49) 05/02/2024   00:16:07  (  69.64, 171.55)   37.75                71
 05/04/2024   14:52:50   (  70.08, -47.15) 05/04/2024   14:53:28  (  70.09, -47.20)    2.61                38
 05/04/2024   15:43:32   ( -69.98, 120.32) 05/04/2024   15:42:58  ( -69.99, 120.28)    1.92                34