Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 16.  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)
 04/16/2021   14:15:38   (  70.26, -37.81) 04/16/2021   14:16:50  (  70.24, -37.73)    3.44                72
 04/16/2021   15:06:19   ( -70.12, 129.71) 04/16/2021   15:06:20  ( -70.13, 129.74)    1.17                 1
 04/16/2021   15:57:01   (  69.89, -62.63) 04/16/2021   15:55:49  (  69.92, -62.92)   11.42                72
 04/19/2021   06:32:32   (  70.18,  78.07) 04/19/2021   06:33:18  (  70.18,  78.05)    0.82                46
 04/19/2021   07:23:14   ( -70.10,-114.48) 04/19/2021   07:22:48  ( -70.07,-114.47)    3.34                26
 04/21/2021   21:58:59   ( -71.06,  25.09) 04/21/2021   22:00:06  ( -70.98,  27.48)   86.89                67
 04/21/2021   22:49:28   (  70.16,-166.14) 04/21/2021   22:49:46  (  70.16,-166.09)    1.67                18
 04/21/2021   23:40:10   ( -70.07,   1.31) 04/21/2021   23:39:16  ( -70.06,   1.39)    3.50                54
 04/24/2021   14:15:39   ( -70.21, 142.25) 04/24/2021   14:16:48  ( -70.20, 142.20)    1.98                69
 04/24/2021   15:06:23   (  70.09, -50.27) 04/24/2021   15:06:15  (  70.09, -50.32)    2.10                 8
 04/24/2021   15:57:00   ( -69.74, 117.58) 04/24/2021   15:55:48  ( -69.82, 116.94)   26.46                72
 04/27/2021   06:32:35   ( -70.19,-101.96) 04/27/2021   06:33:16  ( -70.18,-101.96)    1.04                41
 04/27/2021   07:23:19   (  70.07,  65.52) 04/27/2021   07:22:43  (  70.06,  65.52)    1.28                36
 04/29/2021   21:58:57   (  70.74,-154.40) 04/29/2021   22:00:06  (  70.64,-153.04)   51.35                69
 04/29/2021   22:49:30   ( -70.17,  13.82) 04/29/2021   22:49:43  ( -70.15,  13.88)    3.25                13
 04/29/2021   23:40:13   (  70.01,-178.62) 04/29/2021   23:39:10  (  70.03,-178.64)    2.89                63