Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 15.  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)
 06/16/2021   21:59:13   (  70.91,-154.80) 06/16/2021   22:00:20  (  70.79,-152.69)   77.95                67
 06/16/2021   22:49:41   ( -70.08,  13.85) 06/16/2021   22:50:01  ( -70.07,  13.88)    1.74                20
 06/16/2021   23:40:25   (  69.97,-178.67) 06/16/2021   23:39:28  (  69.98,-178.61)    2.41                57
 06/19/2021   14:15:54   (  70.15, -37.80) 06/19/2021   14:17:02  (  70.13, -37.80)    2.35                68
 06/19/2021   15:06:35   ( -70.00, 129.74) 06/19/2021   15:06:32  ( -70.01, 129.68)    3.07                 3
 06/19/2021   15:57:15   (  69.68, -62.47) 06/19/2021   15:56:03  (  69.69, -63.13)   25.55                72
 06/22/2021   06:32:49   (  70.12,  78.01) 06/22/2021   06:33:32  (  70.11,  78.06)    2.33                43
 06/22/2021   07:23:31   ( -70.02,-114.52) 06/22/2021   07:23:02  ( -70.00,-114.46)    3.13                29
 06/24/2021   21:59:16   ( -71.03,  24.99) 06/24/2021   22:00:22  ( -70.91,  27.49)   91.60                66
 06/24/2021   22:49:43   (  70.04,-166.11) 06/24/2021   22:50:03  (  70.04,-166.16)    1.92                20
 06/24/2021   23:40:25   ( -69.94,   1.37) 06/24/2021   23:39:33  ( -69.93,   1.33)    1.59                52
 06/27/2021   14:15:53   ( -70.12, 142.23) 06/27/2021   14:17:05  ( -70.13, 142.21)    1.51                72
 06/27/2021   15:06:37   (  70.02, -50.30) 06/27/2021   15:06:32  (  70.02, -50.31)    0.14                 5
 06/27/2021   15:57:17   ( -69.81, 117.33) 06/27/2021   15:56:03  ( -69.86, 117.11)   10.38                74