Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 13.  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)
 06/14/2021   06:32:47   ( -70.12,-101.97) 06/14/2021   06:33:31  ( -70.14,-101.91)    3.09                44
 06/14/2021   07:23:31   (  70.00,  65.51) 06/14/2021   07:22:59  (  69.98,  65.52)    1.93                32
 06/16/2021   21:59:13   (  70.91,-154.79) 06/16/2021   22:00:20  (  70.80,-152.69)   77.91                67
 06/16/2021   22:49:41   ( -70.08,  13.85) 06/16/2021   22:50:01  ( -70.08,  13.89)    1.40                20
 06/16/2021   23:40:25   (  69.97,-178.67) 06/16/2021   23:39:28  (  69.98,-178.61)    2.62                57
 06/19/2021   14:15:54   (  70.14, -37.80) 06/19/2021   14:17:02  (  70.13, -37.79)    1.77                68
 06/19/2021   15:06:36   ( -70.05, 129.67) 06/19/2021   15:06:32  ( -70.02, 129.68)    3.04                 4
 06/19/2021   15:57:15   (  69.67, -62.46) 06/19/2021   15:56:03  (  69.69, -63.12)   25.55                72
 06/22/2021   06:32:49   (  70.12,  78.01) 06/22/2021   06:33:32  (  70.12,  78.07)    2.21                43
 06/22/2021   07:23:31   ( -70.01,-114.52) 06/22/2021   07:23:02  ( -70.01,-114.45)    2.60                29
 06/24/2021   21:59:16   ( -71.03,  25.00) 06/24/2021   22:00:22  ( -70.92,  27.50)   91.35                66
 06/24/2021   22:49:43   (  70.04,-166.10) 06/24/2021   22:50:03  (  70.04,-166.15)    2.06                20
 06/24/2021   23:40:25   ( -69.93,   1.38) 06/24/2021   23:39:33  ( -69.94,   1.33)    1.76                52