Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 8 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)
 08/14/2021   14:16:03   ( -70.67, 141.32) 08/14/2021   14:17:12  ( -70.57, 142.87)   58.05                69
 08/14/2021   15:06:37   (  70.03, -50.35) 08/14/2021   15:06:47  (  70.03, -50.28)    2.88                10
 08/14/2021   15:57:18   ( -69.89, 117.17) 08/14/2021   15:56:18  ( -69.87, 117.13)    3.15                60
 08/17/2021   06:32:47   ( -70.10,-102.00) 08/17/2021   06:33:51  ( -70.08,-101.98)    2.46                64
 08/17/2021   07:23:31   (  69.98,  65.49) 08/17/2021   07:23:18  (  69.97,  65.51)    1.18                13
 08/17/2021   08:14:05   ( -69.47,-126.44) 08/17/2021   08:12:54  ( -69.54,-127.45)   39.92                71
 08/19/2021   22:49:41   ( -70.05,  13.84) 08/19/2021   22:50:21  ( -70.07,  13.89)    3.02                40
 08/19/2021   23:40:25   (  69.93,-178.67) 08/19/2021   23:39:49  (  69.90,-178.70)    3.11                36
 08/22/2021   14:16:05   (  70.72, -38.77) 08/22/2021   14:17:13  (  70.60, -37.09)   63.32                68
 08/22/2021   15:06:35   ( -70.00, 129.69) 08/22/2021   15:06:52  ( -70.01, 129.68)    0.46                17
 08/22/2021   15:57:19   (  69.89, -62.83) 08/22/2021   15:56:19  (  69.89, -62.84)    0.59                60
 08/25/2021   06:32:47   (  70.10,  77.99) 08/25/2021   06:33:51  (  70.09,  78.04)    2.56                64
 08/25/2021   07:23:28   ( -69.96,-114.47) 08/25/2021   07:23:22  ( -69.94,-114.54)    3.34                 6
 08/25/2021   08:14:05   (  69.47,  53.55) 08/25/2021   08:12:54  (  69.54,  52.57)   39.13                71
 08/27/2021   22:49:41   (  70.06,-166.18) 08/27/2021   22:50:21  (  70.07,-166.10)    2.87                40
 08/27/2021   23:40:22   ( -69.91,   1.36) 08/27/2021   23:39:52  ( -69.92,   1.32)    1.90                30