Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 5 14.  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)
 05/15/2021   21:59:00   (  70.60,-154.22) 05/15/2021   22:00:10  (  70.50,-153.12)   42.35                70
 05/15/2021   22:49:34   ( -70.10,  13.89) 05/15/2021   22:49:45  ( -70.12,  13.95)    3.34                11
 05/15/2021   23:40:18   (  69.98,-178.62) 05/15/2021   23:39:13  (  69.96,-178.63)    1.61                65
 05/18/2021   14:15:48   (  70.18, -37.80) 05/18/2021   14:16:47  (  70.17, -37.74)    2.93                59
 05/18/2021   15:06:29   ( -70.04, 129.74) 05/18/2021   15:06:17  ( -70.06, 129.74)    1.79                12
 05/18/2021   15:57:03   (  69.39, -62.00) 05/18/2021   15:55:53  (  69.46, -63.45)   57.10                70
 05/21/2021   06:32:43   (  70.13,  78.05) 05/21/2021   06:33:18  (  70.15,  78.12)    3.36                35
 05/21/2021   07:23:24   ( -69.99,-114.42) 05/21/2021   07:22:49  ( -69.99,-114.47)    2.31                35
 05/23/2021   21:59:05   ( -70.77,  25.49) 05/23/2021   22:00:14  ( -70.68,  27.13)   61.20                69
 05/23/2021   22:49:38   (  70.09,-166.12) 05/23/2021   22:49:50  (  70.08,-166.11)    0.97                12
 05/23/2021   23:40:20   ( -69.99,   1.35) 05/23/2021   23:39:20  ( -69.98,   1.38)    1.99                60
 05/26/2021   14:15:48   ( -70.15, 142.25) 05/26/2021   14:16:53  ( -70.17, 142.25)    2.31                65
 05/26/2021   15:06:32   (  70.04, -50.28) 05/26/2021   15:06:20  (  70.06, -50.26)    1.75                12
 05/26/2021   15:57:07   ( -69.57, 117.73) 05/26/2021   15:55:56  ( -69.63, 116.77)   37.63                71