Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 11.  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)
 06/11/2021   14:15:52   ( -70.15, 142.22) 06/11/2021   14:17:01  ( -70.14, 142.21)    0.73                69
 06/11/2021   15:06:36   (  70.03, -50.30) 06/11/2021   15:06:28  (  70.04, -50.28)    1.67                 8
 06/11/2021   15:57:14   ( -69.73, 117.47) 06/11/2021   15:56:01  ( -69.76, 116.96)   19.92                73
 06/14/2021   06:32:46   ( -70.11,-101.96) 06/14/2021   06:33:31  ( -70.09,-101.98)    2.29                45
 06/14/2021   07:23:30   (  70.00,  65.52) 06/14/2021   07:22:58  (  69.99,  65.52)    0.80                32
 06/16/2021   21:59:13   (  70.91,-154.78) 06/16/2021   22:00:20  (  70.80,-152.68)   77.69                67
 06/16/2021   22:49:41   ( -70.07,  13.86) 06/16/2021   22:50:01  ( -70.09,  13.90)    2.31                20
 06/16/2021   23:40:25   (  69.96,-178.66) 06/16/2021   23:39:28  (  69.98,-178.60)    3.39                57
 06/19/2021   14:15:54   (  70.14, -37.79) 06/19/2021   14:17:02  (  70.14, -37.78)    0.26                68
 06/19/2021   15:06:36   ( -70.04, 129.68) 06/19/2021   15:06:32  ( -70.03, 129.70)    1.04                 4
 06/19/2021   15:57:15   (  69.67, -62.45) 06/19/2021   15:56:03  (  69.70, -63.12)   25.81                72
 06/22/2021   06:32:49   (  70.11,  78.03) 06/22/2021   06:33:32  (  70.12,  78.08)    2.71                43
 06/22/2021   07:23:31   ( -70.00,-114.50) 06/22/2021   07:23:02  ( -70.02,-114.44)    2.95                29
 06/24/2021   21:59:15   ( -71.01,  25.03) 06/24/2021   22:00:21  ( -70.93,  27.51)   90.73                66
 06/24/2021   22:49:43   (  70.08,-166.16) 06/24/2021   22:50:02  (  70.05,-166.14)    3.07                19
 06/24/2021   23:40:25   ( -69.97,   1.32) 06/24/2021   23:39:32  ( -69.95,   1.35)    2.63                53