Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 22.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 06/24/2021   21:59:15   ( -71.03,  25.00) 06/24/2021   22:00:21  ( -70.91,  27.49)   91.23                66
 06/24/2021   22:49:42   (  70.03,-166.08) 06/24/2021   22:50:02  (  70.05,-166.14)    3.31                20
 06/24/2021   23:40:24   ( -69.93,   1.37) 06/24/2021   23:39:32  ( -69.93,   1.33)    1.78                52
 06/27/2021   14:15:53   ( -70.11, 142.25) 06/27/2021   14:17:05  ( -70.13, 142.21)    2.72                72
 06/27/2021   15:06:37   (  70.00, -50.28) 06/27/2021   15:06:32  (  70.03, -50.29)    3.05                 5
 06/27/2021   15:57:17   ( -69.80, 117.35) 06/27/2021   15:56:03  ( -69.86, 117.11)   11.48                74
 06/30/2021   06:32:48   ( -70.08,-101.94) 06/30/2021   06:33:35  ( -70.11,-101.94)    3.00                47
 06/30/2021   07:23:32   (  69.97,  65.53) 06/30/2021   07:23:02  (  70.00,  65.55)    3.08                30
 07/02/2021   21:59:16   (  70.94,-154.87) 07/02/2021   22:00:23  (  70.84,-152.60)   83.16                67
 07/02/2021   22:49:43   ( -70.05,  13.87) 07/02/2021   22:50:05  ( -70.08,  13.90)    3.37                22
 07/02/2021   23:40:27   (  69.95,-178.66) 07/02/2021   23:39:32  (  69.97,-178.61)    3.17                55
 07/05/2021   14:15:55   (  70.13, -37.79) 07/05/2021   14:17:04  (  70.15, -37.75)    2.97                69
 07/05/2021   15:06:37   ( -70.02, 129.68) 07/05/2021   15:06:35  ( -69.99, 129.66)    3.34                 2
 07/05/2021   15:57:17   (  69.71, -62.54) 07/05/2021   15:56:04  (  69.77, -63.01)   19.21                73