Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 5 18.  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)
 05/18/2018   15:05:35   (  70.15, -50.30) 05/18/2018   15:05:35  (  70.16, -50.22)    3.04                 0
 05/18/2018   15:56:16   ( -70.01, 117.24) 05/18/2018   15:55:06  ( -69.99, 117.17)    3.48                70
 05/21/2018   06:31:44   ( -70.22,-101.95) 05/21/2018   06:32:36  ( -70.21,-101.92)    2.10                52
 05/21/2018   07:22:28   (  70.12,  65.53) 05/21/2018   07:22:03  (  70.10,  65.58)    2.06                25
 05/21/2018   08:12:54   ( -69.18,-125.78) 05/21/2018   08:11:47  ( -69.22,-127.99)   87.76                67
 05/23/2018   22:48:37   ( -70.19,  13.88) 05/23/2018   22:49:03  ( -70.21,  13.96)    3.28                26
 05/23/2018   23:39:20   (  70.03,-178.56) 05/23/2018   23:38:31  (  70.04,-178.63)    2.97                49
 05/26/2018   14:14:48   (  70.31, -37.84) 05/26/2018   14:15:59  (  70.31, -37.65)    7.19                71
 05/26/2018   15:05:29   ( -70.16, 129.71) 05/26/2018   15:05:30  ( -70.15, 129.75)    1.98                 1
 05/26/2018   15:56:11   (  69.95, -62.66) 05/26/2018   15:54:58  (  69.98, -62.84)    7.72                73
 05/29/2018   06:31:40   (  70.23,  78.06) 05/29/2018   06:32:27  (  70.24,  78.13)    2.89                47
 05/29/2018   07:22:21   ( -70.07,-114.39) 05/29/2018   07:21:58  ( -70.08,-114.46)    2.99                23
 05/31/2018   22:48:32   (  70.15,-166.04) 05/31/2018   22:48:55  (  70.17,-166.09)    2.64                23
 05/31/2018   23:39:14   ( -70.05,   1.43) 05/31/2018   23:38:25  ( -70.06,   1.40)    2.55                49