Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 18.  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   06:32:33   (  70.20,  78.04) 04/19/2021   06:33:18  (  70.21,  78.10)    2.45                45
 04/19/2021   07:23:14   ( -70.07,-114.44) 04/19/2021   07:22:48  ( -70.10,-114.43)    3.37                26
 04/21/2021   21:59:00   ( -71.09,  25.06) 04/21/2021   22:00:07  ( -70.96,  27.44)   87.50                67
 04/21/2021   22:49:27   (  70.13,-166.09) 04/21/2021   22:49:46  (  70.14,-166.13)    2.02                19
 04/21/2021   23:40:09   ( -70.04,   1.36) 04/21/2021   23:39:16  ( -70.03,   1.35)    1.39                53
 04/24/2021   14:15:39   ( -70.23, 142.21) 04/24/2021   14:16:47  ( -70.23, 142.24)    0.95                68
 04/24/2021   15:06:23   (  70.11, -50.29) 04/24/2021   15:06:14  (  70.12, -50.28)    1.41                 9
 04/24/2021   15:57:00   ( -69.76, 117.55) 04/24/2021   15:55:48  ( -69.79, 116.90)   25.32                72
 04/27/2021   06:32:35   ( -70.21,-101.99) 04/27/2021   06:33:15  ( -70.21,-101.92)    2.97                40
 04/27/2021   07:23:19   (  70.09,  65.49) 04/27/2021   07:22:42  (  70.09,  65.57)    2.82                37
 04/29/2021   21:58:57   (  70.71,-154.34) 04/29/2021   22:00:07  (  70.61,-153.08)   47.61                70
 04/29/2021   22:49:30   ( -70.14,  13.88) 04/29/2021   22:49:44  ( -70.13,  13.85)    1.58                14
 04/29/2021   23:40:14   (  70.02,-178.64) 04/29/2021   23:39:11  (  70.01,-178.67)    1.94                63