Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 11 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)
 11/21/2018   06:32:16   (  70.99,  76.73) 11/21/2018   06:33:22  (  70.88,  79.19)   90.37                66
 11/21/2018   07:22:41   ( -70.02,-114.40) 11/21/2018   07:23:06  ( -70.00,-114.47)    3.18                25
 11/21/2018   08:13:25   (  69.89,  53.10) 11/21/2018   08:12:33  (  69.90,  53.03)    3.10                52
 11/23/2018   22:48:53   (  70.11,-166.09) 11/23/2018   22:50:04  (  70.12,-166.07)    0.95                71
 11/23/2018   23:39:34   ( -69.98,   1.43) 11/23/2018   23:39:34  ( -70.00,   1.41)    2.80                 0
 11/24/2018   00:30:16   (  69.75, 169.08) 11/24/2018   00:29:03  (  69.79, 168.75)   13.41                73
 11/26/2018   15:05:47   (  70.08, -50.27) 11/26/2018   15:06:34  (  70.06, -50.27)    3.00                47
 11/26/2018   15:56:28   ( -69.95, 117.26) 11/26/2018   15:56:04  ( -69.95, 117.21)    1.81                24
 11/29/2018   07:22:41   (  70.05,  65.55) 11/29/2018   07:23:03  (  70.05,  65.60)    1.93                22
 11/29/2018   08:13:22   ( -69.91,-126.91) 11/29/2018   08:12:33  ( -69.95,-126.91)    3.52                49
 12/01/2018   22:48:53   ( -70.24,  13.73) 12/01/2018   22:50:04  ( -70.21,  14.07)   13.30                71
 12/01/2018   23:39:34   (  69.97,-178.55) 12/01/2018   23:39:33  (  69.99,-178.60)    2.68                 1
 12/02/2018   00:30:16   ( -69.88, -11.09) 12/02/2018   00:29:03  ( -69.88, -11.11)    0.94                73
 12/04/2018   15:05:44   ( -70.11, 129.71) 12/04/2018   15:06:34  ( -70.09, 129.78)    3.23                50
 12/04/2018   15:56:27   (  69.95, -62.73) 12/04/2018   15:56:01  (  69.98, -62.74)    3.28                26