Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 8 17.  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)
 08/17/2021   06:32:47   ( -70.07,-101.96) 08/17/2021   06:33:52  ( -70.05,-102.01)    2.83                65
 08/17/2021   07:23:31   (  69.95,  65.54) 08/17/2021   07:23:19  (  69.95,  65.49)    2.23                12
 08/17/2021   08:14:06   ( -69.50,-126.48) 08/17/2021   08:12:55  ( -69.51,-127.49)   39.33                71
 08/19/2021   22:49:40   ( -70.02,  13.89) 08/19/2021   22:50:21  ( -70.05,  13.86)    3.10                41
 08/19/2021   23:40:25   (  69.95,-178.70) 08/19/2021   23:39:48  (  69.94,-178.65)    2.32                37
 08/22/2021   14:16:04   (  70.69, -38.72) 08/22/2021   14:17:13  (  70.58, -37.12)   60.23                69
 08/22/2021   15:06:35   ( -70.03, 129.65) 08/22/2021   15:06:51  ( -70.04, 129.72)    3.09                16
 08/22/2021   15:57:19   (  69.91, -62.86) 08/22/2021   15:56:18  (  69.93, -62.79)    3.58                61
 08/25/2021   06:32:47   (  70.07,  78.03) 08/25/2021   06:33:52  (  70.07,  78.02)    0.64                65
 08/25/2021   07:23:29   ( -69.98,-114.51) 08/25/2021   07:23:22  ( -69.97,-114.49)    1.66                 7
 08/25/2021   08:14:06   (  69.49,  53.52) 08/25/2021   08:12:55  (  69.52,  52.54)   38.14                71
 08/27/2021   22:49:41   (  70.03,-166.13) 08/27/2021   22:50:22  (  70.05,-166.13)    2.21                41
 08/27/2021   23:40:23   ( -69.94,   1.32) 08/27/2021   23:39:52  ( -69.95,   1.37)    2.25                31
 08/30/2021   14:16:05   ( -70.89, 140.96) 08/30/2021   14:17:12  ( -70.80, 143.21)   82.75                67
 08/30/2021   15:06:34   (  69.99, -50.31) 08/30/2021   15:06:52  (  69.97, -50.36)    2.88                18
 08/30/2021   15:57:16   ( -69.90, 117.15) 08/30/2021   15:56:22  ( -69.88, 117.14)    2.34                54