Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 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)
 07/21/2018   14:15:05   ( -70.89, 141.18) 07/21/2018   14:16:13  ( -70.78, 143.21)   75.31                68
 07/21/2018   15:05:35   (  70.08, -50.23) 07/21/2018   15:05:50  (  70.09, -50.17)    2.10                15
 07/21/2018   15:56:16   ( -69.95, 117.29) 07/21/2018   15:55:20  ( -69.97, 117.30)    2.24                56
 07/24/2018   06:31:46   ( -70.14,-101.86) 07/24/2018   06:32:54  ( -70.13,-101.87)    1.13                68
 07/24/2018   07:22:30   (  70.02,  65.64) 07/24/2018   07:22:21  (  70.03,  65.63)    1.45                 9
 07/24/2018   08:13:07   ( -69.67,-126.53) 07/24/2018   08:11:55  ( -69.70,-127.20)   25.97                72
 07/26/2018   22:48:41   ( -70.08,  14.00) 07/26/2018   22:49:25  ( -70.08,  13.94)    2.53                44
 07/26/2018   23:39:25   (  69.96,-178.50) 07/26/2018   23:38:52  (  69.98,-178.57)    3.06                33
 07/29/2018   14:15:07   (  70.79, -38.68) 07/29/2018   14:16:15  (  70.73, -36.85)   67.13                68
 07/29/2018   15:05:37   ( -70.07, 129.79) 07/29/2018   15:05:55  ( -70.08, 129.82)    1.74                18
 07/29/2018   15:56:21   (  69.95, -62.73) 07/29/2018   15:55:22  (  69.97, -62.69)    2.74                59
 08/01/2018   06:31:50   (  70.15,  78.11) 08/01/2018   06:32:55  (  70.12,  78.13)    3.27                65
 08/01/2018   07:22:31   ( -70.00,-114.35) 08/01/2018   07:22:25  ( -70.02,-114.39)    2.07                 6
 08/01/2018   08:13:09   (  69.57,  53.60) 08/01/2018   08:11:57  (  69.63,  52.72)   34.52                72
 08/03/2018   22:48:45   (  70.09,-166.04) 08/03/2018   22:49:25  (  70.11,-166.00)    2.57                40
 08/03/2018   23:39:27   ( -70.00,   1.43) 08/03/2018   23:38:55  ( -70.01,   1.49)    2.86                32