Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 7 21.  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)
 07/21/2021   14:15:56   (  70.16, -37.86) 07/21/2021   14:17:08  (  70.14, -37.75)    4.86                72
 07/21/2021   15:06:37   ( -70.02, 129.67) 07/21/2021   15:06:38  ( -70.03, 129.73)    2.18                 1
 07/21/2021   15:57:19   (  69.80, -62.68) 07/21/2021   15:56:07  (  69.82, -62.93)    9.61                72
 07/24/2021   06:32:49   (  70.05,  78.09) 07/24/2021   06:33:40  (  70.06,  78.02)    3.18                51
 07/24/2021   07:23:31   ( -69.96,-114.46) 07/24/2021   07:23:10  ( -69.96,-114.50)    1.56                21
 07/24/2021   08:13:58   (  68.94,  54.31) 07/24/2021   08:12:52  (  69.02,  51.89)   97.32                66
 07/26/2021   22:49:44   (  70.04,-166.13) 07/26/2021   22:50:11  (  70.04,-166.14)    0.42                27
 07/26/2021   23:40:26   ( -69.95,   1.33) 07/26/2021   23:39:41  ( -69.93,   1.34)    1.47                45
 07/29/2021   14:16:00   ( -70.40, 141.76) 07/29/2021   14:17:12  ( -70.28, 142.44)   28.75                72
 07/29/2021   15:06:39   (  70.03, -50.35) 07/29/2021   15:06:42  (  70.01, -50.31)    3.06                 3
 07/29/2021   15:57:20   ( -69.88, 117.19) 07/29/2021   15:56:12  ( -69.91, 117.19)    2.80                68
 08/01/2021   06:32:48   ( -70.08,-101.97) 08/01/2021   06:33:45  ( -70.09,-101.96)    1.30                57
 08/01/2021   07:23:32   (  69.97,  65.51) 08/01/2021   07:23:12  (  69.97,  65.52)    0.68                20
 08/01/2021   08:14:02   ( -69.24,-126.11) 08/01/2021   08:12:53  ( -69.27,-127.80)   66.72                69
 08/03/2021   22:49:43   ( -70.07,  13.82) 08/03/2021   22:50:16  ( -70.06,  13.87)    2.76                33
 08/03/2021   23:40:26   (  69.91,-178.64) 08/03/2021   23:39:43  (  69.94,-178.65)    2.76                43