Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 19.  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)
 04/19/2021   06:32:32   (  70.18,  78.07) 04/19/2021   06:33:18  (  70.18,  78.05)    1.08                46
 04/19/2021   07:23:13   ( -70.05,-114.41) 04/19/2021   07:22:48  ( -70.06,-114.48)    2.98                25
 04/21/2021   21:58:59   ( -71.07,  25.09) 04/21/2021   22:00:06  ( -70.97,  27.47)   86.83                67
 04/21/2021   22:49:28   (  70.16,-166.14) 04/21/2021   22:49:46  (  70.16,-166.10)    1.49                18
 04/21/2021   23:40:09   ( -70.02,   1.39) 04/21/2021   23:39:16  ( -70.05,   1.38)    2.67                53
 04/24/2021   14:15:39   ( -70.21, 142.24) 04/24/2021   14:16:48  ( -70.19, 142.18)    2.93                69
 04/24/2021   15:06:23   (  70.09, -50.26) 04/24/2021   15:06:15  (  70.08, -50.33)    2.56                 8
 04/24/2021   15:57:00   ( -69.74, 117.58) 04/24/2021   15:55:48  ( -69.81, 116.92)   26.40                72
 04/27/2021   06:32:35   ( -70.19,-101.96) 04/27/2021   06:33:16  ( -70.17,-101.97)    2.23                41
 04/27/2021   07:23:19   (  70.07,  65.52) 04/27/2021   07:22:43  (  70.06,  65.51)    1.80                36
 04/29/2021   21:58:57   (  70.74,-154.39) 04/29/2021   22:00:06  (  70.63,-153.06)   50.61                69
 04/29/2021   22:49:29   ( -70.12,  13.91) 04/29/2021   22:49:43  ( -70.14,  13.87)    2.90                14
 04/29/2021   23:40:13   (  70.00,-178.61) 04/29/2021   23:39:10  (  70.02,-178.65)    2.83                63
 05/02/2021   14:15:43   (  70.20, -37.77) 05/02/2021   14:16:41  (  70.21, -37.79)    1.21                58
 05/02/2021   15:06:25   ( -70.10, 129.69) 05/02/2021   15:06:11  ( -70.11, 129.70)    0.52                14
 05/02/2021   15:56:57   (  69.35, -61.89) 05/02/2021   15:55:48  (  69.44, -63.58)   66.57                69