Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 18.  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)
 06/19/2021   14:15:53   (  70.11, -37.74) 06/19/2021   14:17:02  (  70.11, -37.82)    2.94                69
 06/19/2021   15:06:35   ( -70.01, 129.72) 06/19/2021   15:06:32  ( -69.99, 129.65)    3.55                 3
 06/19/2021   15:57:14   (  69.64, -62.41) 06/19/2021   15:56:02  (  69.73, -63.07)   27.68                72
 06/22/2021   06:32:48   (  70.08,  78.07) 06/22/2021   06:33:32  (  70.10,  78.04)    2.13                44
 06/22/2021   07:23:30   ( -69.98,-114.47) 06/22/2021   07:23:02  ( -69.98,-114.48)    0.65                28
 06/24/2021   21:59:15   ( -71.00,  25.06) 06/24/2021   22:00:22  ( -70.89,  27.46)   88.04                67
 06/24/2021   22:49:43   (  70.05,-166.12) 06/24/2021   22:50:02  (  70.08,-166.10)    2.94                19
 06/24/2021   23:40:25   ( -69.95,   1.34) 06/24/2021   23:39:32  ( -69.97,   1.38)    2.11                53
 06/27/2021   14:15:54   ( -70.13, 142.22) 06/27/2021   14:17:06  ( -70.11, 142.18)    2.78                72
 06/27/2021   15:06:38   (  70.03, -50.32) 06/27/2021   15:06:33  (  70.00, -50.33)    2.97                 5
 06/27/2021   15:57:17   ( -69.77, 117.39) 06/27/2021   15:56:04  ( -69.84, 117.08)   14.55                73
 06/30/2021   06:32:48   ( -70.10,-101.98) 06/30/2021   06:33:35  ( -70.09,-101.97)    1.97                47
 06/30/2021   07:23:31   (  69.95,  65.57) 06/30/2021   07:23:02  (  69.97,  65.52)    3.31                29