Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 8.  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)
 04/08/2021   14:15:39   ( -70.63, 141.63) 04/08/2021   14:16:49  ( -70.51, 142.67)   40.52                70
 04/08/2021   15:06:16   (  70.14, -50.29) 04/08/2021   15:06:21  (  70.14, -50.24)    1.98                 5
 04/08/2021   15:56:57   ( -70.01, 117.24) 04/08/2021   15:55:51  ( -70.02, 117.24)    2.14                66
 04/11/2021   06:32:27   ( -70.18,-101.89) 04/11/2021   06:33:23  ( -70.19,-101.92)    1.95                56
 04/11/2021   07:23:12   (  70.11,  65.52) 04/11/2021   07:22:50  (  70.08,  65.57)    3.21                22
 04/11/2021   08:13:40   ( -69.28,-125.95) 04/11/2021   08:12:32  ( -69.32,-127.85)   74.87                68
 04/13/2021   22:49:23   ( -70.15,  13.92) 04/13/2021   22:49:52  ( -70.14,  13.88)    1.63                29
 04/13/2021   23:40:07   (  70.03,-178.59) 04/13/2021   23:39:19  (  70.03,-178.63)    1.67                48
 04/16/2021   14:15:38   (  70.26, -37.81) 04/16/2021   14:16:50  (  70.24, -37.73)    3.55                72
 04/16/2021   15:06:19   ( -70.12, 129.73) 04/16/2021   15:06:20  ( -70.14, 129.75)    2.83                 1
 04/16/2021   15:57:01   (  69.89, -62.63) 04/16/2021   15:55:49  (  69.91, -62.92)   11.37                72
 04/19/2021   06:32:32   (  70.18,  78.07) 04/19/2021   06:33:18  (  70.18,  78.06)    0.70                46
 04/19/2021   07:23:14   ( -70.09,-114.47) 04/19/2021   07:22:48  ( -70.08,-114.45)    0.91                26
 04/21/2021   21:59:00   ( -71.10,  25.03) 04/21/2021   22:00:06  ( -70.99,  27.51)   90.09                66
 04/21/2021   22:49:28   (  70.15,-166.13) 04/21/2021   22:49:46  (  70.17,-166.08)    2.11                18
 04/21/2021   23:40:10   ( -70.06,   1.34) 04/21/2021   23:39:16  ( -70.07,   1.41)    2.99                54