Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 9 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)
 09/10/2021   06:32:45   (  70.12,  77.96) 09/10/2021   06:33:56  (  70.12,  78.08)    4.67                71
 09/10/2021   07:23:26   ( -69.99,-114.52) 09/10/2021   07:23:26  ( -70.01,-114.45)    3.17                 0
 09/10/2021   08:14:08   (  69.76,  53.13) 09/10/2021   08:12:55  (  69.79,  52.90)    9.66                73
 09/12/2021   22:49:38   (  70.04,-166.15) 09/12/2021   22:50:27  (  70.04,-166.15)    0.13                49
 09/12/2021   23:40:20   ( -69.96,   1.30) 09/12/2021   23:39:57  ( -69.93,   1.33)    3.12                23
 09/15/2021   15:06:31   (  70.02, -50.34) 09/15/2021   15:06:56  (  70.02, -50.31)    1.05                25
 09/15/2021   15:57:13   ( -69.93, 117.12) 09/15/2021   15:56:26  ( -69.91, 117.17)    3.09                47
 09/18/2021   06:32:45   ( -70.31,-102.33) 09/18/2021   06:33:57  ( -70.20,-101.80)   23.26                72
 09/18/2021   07:23:25   (  69.99,  65.47) 09/18/2021   07:23:26  (  69.99,  65.53)    2.15                 1
 09/18/2021   08:14:06   ( -69.85,-126.99) 09/18/2021   08:12:57  ( -69.83,-127.06)    3.61                69
 09/20/2021   22:49:35   ( -70.08,  13.81) 09/20/2021   22:50:29  ( -70.06,  13.87)    3.06                54
 09/20/2021   23:40:19   (  69.97,-178.72) 09/20/2021   23:39:56  (  69.95,-178.64)    3.61                23
 09/21/2021   00:30:47   ( -69.13, -10.19) 09/21/2021   00:29:38  ( -69.19, -12.04)   73.57                69
 09/23/2021   15:06:28   ( -70.00, 129.70) 09/23/2021   15:06:59  ( -70.02, 129.70)    2.41                31
 09/23/2021   15:57:12   (  69.89, -62.83) 09/23/2021   15:56:26  (  69.91, -62.82)    1.74                46