Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 7 10.  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)
 07/10/2021   21:59:16   ( -71.02,  25.00) 07/10/2021   22:00:22  ( -70.96,  27.59)   94.06                66
 07/10/2021   22:49:44   (  70.07,-166.17) 07/10/2021   22:50:04  (  70.04,-166.13)    3.26                20
 07/10/2021   23:40:25   ( -69.93,   1.37) 07/10/2021   23:39:34  ( -69.93,   1.34)    1.14                51
 07/13/2021   14:15:55   ( -70.16, 142.15) 07/13/2021   14:17:06  ( -70.15, 142.26)    4.61                71
 07/13/2021   15:06:38   (  70.00, -50.29) 07/13/2021   15:06:34  (  69.99, -50.32)    1.12                 4
 07/13/2021   15:57:18   ( -69.80, 117.32) 07/13/2021   15:56:05  ( -69.83, 117.08)    9.64                73
 07/16/2021   06:32:49   ( -70.09,-101.98) 07/16/2021   06:33:36  ( -70.10,-101.92)    2.35                47
 07/16/2021   07:23:33   (  69.99,  65.50) 07/16/2021   07:23:03  (  70.00,  65.57)    3.02                30
 07/18/2021   21:59:17   (  70.97,-154.92) 07/18/2021   22:00:23  (  70.87,-152.54)   87.40                66
 07/18/2021   22:49:43   ( -70.03,  13.90) 07/18/2021   22:50:06  ( -70.05,  13.89)    2.84                23
 07/18/2021   23:40:27   (  69.92,-178.63) 07/18/2021   23:39:33  (  69.94,-178.63)    2.29                54
 07/21/2021   14:15:55   (  70.11, -37.79) 07/21/2021   14:17:05  (  70.09, -37.80)    2.16                70
 07/21/2021   15:06:37   ( -70.01, 129.69) 07/21/2021   15:06:35  ( -69.99, 129.69)    1.93                 2
 07/21/2021   15:57:17   (  69.69, -62.53) 07/21/2021   15:56:04  (  69.77, -62.98)   19.12                73