Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 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)
 04/11/2021   06:32:28   ( -70.21,-101.95) 04/11/2021   06:33:23  ( -70.21,-101.90)    1.83                55
 04/11/2021   07:23:12   (  70.09,  65.55) 04/11/2021   07:22:50  (  70.11,  65.60)    2.69                22
 04/11/2021   08:13:40   ( -69.26,-125.92) 04/11/2021   08:12:32  ( -69.34,-127.82)   75.22                68
 04/13/2021   22:49:23   ( -70.18,  13.86) 04/13/2021   22:49:51  ( -70.16,  13.91)    2.90                28
 04/13/2021   23:40:07   (  70.06,-178.64) 04/13/2021   23:39:18  (  70.05,-178.60)    1.73                49
 04/16/2021   14:15:38   (  70.29, -37.86) 04/16/2021   14:16:49  (  70.26, -37.70)    6.96                71
 04/16/2021   15:06:18   ( -70.10, 129.75) 04/16/2021   15:06:20  ( -70.10, 129.70)    1.99                 2
 04/16/2021   15:57:01   (  69.93, -62.68) 04/16/2021   15:55:48  (  69.93, -62.89)    8.13                73
 04/19/2021   06:32:33   (  70.21,  78.02) 04/19/2021   06:33:18  (  70.20,  78.08)    3.04                45
 04/19/2021   07:23:14   ( -70.07,-114.44) 04/19/2021   07:22:48  ( -70.09,-114.43)    2.74                26
 04/21/2021   21:59:00   ( -71.09,  25.06) 04/21/2021   22:00:07  ( -70.95,  27.44)   87.55                67
 04/21/2021   22:49:28   (  70.14,-166.10) 04/21/2021   22:49:47  (  70.13,-166.14)    1.88                19
 04/21/2021   23:40:10   ( -70.04,   1.36) 04/21/2021   23:39:17  ( -70.03,   1.35)    1.76                53