Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 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)
 06/08/2021   21:59:11   ( -70.94,  25.18) 06/08/2021   22:00:18  ( -70.82,  27.34)   80.06                67
 06/08/2021   22:49:41   (  70.09,-166.16) 06/08/2021   22:49:57  (  70.07,-166.12)    2.98                16
 06/08/2021   23:40:22   ( -69.95,   1.38) 06/08/2021   23:39:27  ( -69.95,   1.35)    1.20                55
 06/11/2021   14:15:52   ( -70.17, 142.18) 06/11/2021   14:17:00  ( -70.17, 142.26)    2.99                68
 06/11/2021   15:06:35   (  70.00, -50.26) 06/11/2021   15:06:28  (  70.02, -50.32)    2.75                 7
 06/11/2021   15:57:13   ( -69.70, 117.52) 06/11/2021   15:56:01  ( -69.74, 116.93)   23.04                72
 06/14/2021   06:32:47   ( -70.13,-101.99) 06/14/2021   06:33:31  ( -70.12,-101.93)    2.43                44
 06/14/2021   07:23:30   (  69.97,  65.56) 06/14/2021   07:22:59  (  69.96,  65.49)    2.89                31
 06/16/2021   21:59:13   (  70.88,-154.74) 06/16/2021   22:00:21  (  70.78,-152.72)   74.71                68
 06/16/2021   22:49:42   ( -70.09,  13.83) 06/16/2021   22:50:02  ( -70.07,  13.87)    3.22                20
 06/16/2021   23:40:25   (  69.93,-178.62) 06/16/2021   23:39:29  (  69.96,-178.64)    2.86                56
 06/19/2021   14:15:53   (  70.11, -37.74) 06/19/2021   14:17:02  (  70.11, -37.82)    2.79                69
 06/19/2021   15:06:35   ( -70.00, 129.73) 06/19/2021   15:06:32  ( -70.01, 129.67)    2.49                 3
 06/19/2021   15:57:14   (  69.64, -62.41) 06/19/2021   15:56:02  (  69.73, -63.07)   27.56                72