Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 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)
 05/09/2024   22:35:53   ( -70.18,  16.95) 05/09/2024   22:37:03  ( -70.18,  17.01)    2.27                70
 05/09/2024   23:26:37   (  70.06,-175.56) 05/09/2024   23:26:30  (  70.08,-175.49)    3.63                 7
 05/10/2024   00:17:15   ( -69.76,  -7.80) 05/10/2024   00:16:02  ( -69.85,  -8.17)   17.74                73
 05/12/2024   14:52:45   ( -70.13, 132.81) 05/12/2024   14:53:31  ( -70.10, 132.78)    2.75                46
 05/12/2024   15:43:29   (  70.01, -59.70) 05/12/2024   15:42:58  (  70.00, -59.72)    1.57                31
 05/15/2024   06:19:09   (  70.91,  80.02) 05/15/2024   06:20:16  (  70.82,  82.08)   75.68                67
 05/15/2024   07:09:37   ( -70.09,-111.34) 05/15/2024   07:09:57  ( -70.10,-111.34)    1.58                20
 05/15/2024   08:00:21   (  69.97,  56.14) 05/15/2024   07:59:24  (  69.99,  56.15)    2.11                57
 05/17/2024   22:35:47   (  70.15,-162.96) 05/17/2024   22:36:53  (  70.17,-162.99)    2.87                66
 05/17/2024   23:26:29   ( -70.06,   4.50) 05/17/2024   23:26:23  ( -70.06,   4.49)    0.63                 6
 05/18/2024   00:17:06   (  69.57, 172.53) 05/18/2024   00:15:55  (  69.67, 171.60)   37.68                71
 05/20/2024   14:52:38   (  70.13, -47.14) 05/20/2024   14:53:17  (  70.15, -47.13)    2.30                39
 05/20/2024   15:43:20   ( -70.03, 120.32) 05/20/2024   15:42:47  ( -70.04, 120.35)    1.34                33