Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 9 23.  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)
 09/23/2021   15:06:27   ( -69.99, 129.71) 09/23/2021   15:06:59  ( -69.98, 129.63)    3.17                32
 09/23/2021   15:57:11   (  69.87, -62.80) 09/23/2021   15:56:26  (  69.88, -62.86)    2.61                45
 09/26/2021   06:32:44   (  70.32,  77.66) 09/26/2021   06:33:56  (  70.22,  78.22)   24.19                72
 09/26/2021   07:23:21   ( -69.97,-114.48) 09/26/2021   07:23:28  ( -69.99,-114.47)    2.47                 7
 09/26/2021   08:14:05   (  69.85,  53.00) 09/26/2021   08:12:56  (  69.84,  52.96)    2.58                69
 09/28/2021   22:49:33   (  70.04,-166.14) 09/28/2021   22:50:28  (  70.05,-166.13)    1.14                55
 09/28/2021   23:40:15   ( -69.95,   1.32) 09/28/2021   23:39:58  ( -69.94,   1.34)    1.49                17
 09/29/2021   00:30:45   (  69.09, 169.87) 09/29/2021   00:29:37  (  69.17, 167.95)   76.38                68
 10/01/2021   15:06:25   (  69.98, -50.27) 10/01/2021   15:06:57  (  70.00, -50.33)    3.02                32
 10/01/2021   15:57:07   ( -69.88, 117.19) 10/01/2021   15:56:27  ( -69.89, 117.15)    1.67                40
 10/04/2021   06:32:43   ( -70.50,-102.61) 10/04/2021   06:33:54  ( -70.37,-101.56)   41.52                71
 10/04/2021   07:23:19   (  69.97,  65.52) 10/04/2021   07:23:26  (  69.99,  65.54)    2.11                 7
 10/04/2021   08:14:01   ( -69.87,-127.02) 10/04/2021   08:12:56  ( -69.88,-126.98)    1.99                65
 10/06/2021   22:49:28   ( -70.01,  13.92) 10/06/2021   22:50:29  ( -70.03,  13.84)    3.69                61
 10/06/2021   23:40:12   (  69.91,-178.62) 10/06/2021   23:39:56  (  69.92,-178.67)    2.28                16
 10/07/2021   00:30:44   ( -69.28, -10.38) 10/07/2021   00:29:34  ( -69.38, -11.78)   56.02                70