Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 7 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)
 07/13/2018   14:15:02   (  70.84, -38.72) 07/13/2018   14:16:10  (  70.69, -36.93)   67.85                68
 07/13/2018   15:05:31   ( -70.07, 129.81) 07/13/2018   15:05:49  ( -70.08, 129.81)    1.03                18
 07/13/2018   15:56:15   (  69.94, -62.69) 07/13/2018   15:55:17  (  69.93, -62.76)    3.25                58
 07/16/2018   06:31:45   (  70.14,  78.16) 07/16/2018   06:32:50  (  70.15,  78.16)    1.82                65
 07/16/2018   07:22:26   ( -70.06,-114.40) 07/16/2018   07:22:19  ( -70.04,-114.36)    2.03                 7
 07/16/2018   08:13:03   (  69.56,  53.65) 07/16/2018   08:11:52  (  69.61,  52.68)   37.90                71
 07/18/2018   22:48:40   (  70.12,-166.06) 07/18/2018   22:49:20  (  70.11,-166.02)    2.30                40
 07/18/2018   23:39:21   ( -69.99,   1.47) 07/18/2018   23:38:50  ( -70.00,   1.46)    1.58                31
 07/21/2018   14:15:05   ( -70.91, 141.14) 07/21/2018   14:16:12  ( -70.82, 143.27)   78.32                67
 07/21/2018   15:05:35   (  70.06, -50.19) 07/21/2018   15:05:51  (  70.06, -50.21)    0.70                16
 07/21/2018   15:56:17   ( -69.97, 117.26) 07/21/2018   15:55:21  ( -69.95, 117.27)    2.03                56
 07/24/2018   06:31:46   ( -70.11,-101.81) 07/24/2018   06:32:55  ( -70.12,-101.89)    3.00                69
 07/24/2018   07:22:30   (  70.00,  65.67) 07/24/2018   07:22:22  (  70.01,  65.60)    2.99                 8
 07/24/2018   08:13:07   ( -69.64,-126.48) 07/24/2018   08:11:55  ( -69.74,-127.14)   27.75                72
 07/26/2018   22:48:41   ( -70.10,  13.97) 07/26/2018   22:49:24  ( -70.12,  13.99)    2.34                43
 07/26/2018   23:39:25   (  69.99,-178.55) 07/26/2018   23:38:51  (  70.00,-178.52)    2.26                34