Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 5 30.  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)
 05/31/2021   21:59:08   (  70.77,-154.53) 05/31/2021   22:00:17  (  70.65,-152.91)   61.23                69
 05/31/2021   22:49:39   ( -70.10,  13.84) 05/31/2021   22:49:55  ( -70.10,  13.91)    2.72                16
 05/31/2021   23:40:22   (  69.93,-178.59) 05/31/2021   23:39:23  (  69.94,-178.66)    2.91                59
 06/03/2021   14:15:52   (  70.15, -37.78) 06/03/2021   14:16:56  (  70.17, -37.73)    2.98                64
 06/03/2021   15:06:34   ( -70.06, 129.68) 06/03/2021   15:06:26  ( -70.06, 129.74)    2.50                 8
 06/03/2021   15:57:10   (  69.52, -62.22) 06/03/2021   15:56:00  (  69.57, -63.29)   42.19                70
 06/06/2021   06:32:46   (  70.11,  78.04) 06/06/2021   06:33:26  (  70.13,  78.08)    2.35                40
 06/06/2021   07:23:28   ( -70.02,-114.49) 06/06/2021   07:22:56  ( -70.02,-114.44)    2.26                32
 06/08/2021   21:59:11   ( -70.92,  25.21) 06/08/2021   22:00:19  ( -70.79,  27.30)   77.27                68
 06/08/2021   22:49:41   (  70.08,-166.14) 06/08/2021   22:49:57  (  70.08,-166.10)    1.34                16
 06/08/2021   23:40:23   ( -69.98,   1.33) 06/08/2021   23:39:27  ( -69.98,   1.38)    1.86                56
 06/11/2021   14:15:52   ( -70.15, 142.21) 06/11/2021   14:17:01  ( -70.14, 142.21)    0.85                69
 06/11/2021   15:06:36   (  70.05, -50.32) 06/11/2021   15:06:28  (  70.03, -50.30)    2.06                 8
 06/11/2021   15:57:13   ( -69.68, 117.55) 06/11/2021   15:56:01  ( -69.76, 116.96)   24.41                72