Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 10 25.  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)
 10/28/2018   06:32:16   ( -70.86,-103.08) 10/28/2018   06:33:24  ( -70.76,-101.00)   76.99                68
 10/28/2018   07:22:46   (  70.01,  65.58) 10/28/2018   07:23:03  (  70.01,  65.53)    1.88                17
 10/28/2018   08:13:28   ( -69.92,-126.97) 10/28/2018   08:12:33  ( -69.90,-126.99)    3.21                55
 10/30/2018   22:48:56   ( -70.13,  13.87) 10/30/2018   22:50:05  ( -70.10,  13.90)    3.19                69
 10/30/2018   23:39:40   (  70.01,-178.65) 10/30/2018   23:39:32  (  69.99,-178.61)    2.12                 8
 10/31/2018   00:30:17   ( -69.66, -10.80) 10/31/2018   00:29:05  ( -69.72, -11.35)   22.31                72
 11/02/2018   15:05:50   ( -70.07, 129.72) 11/02/2018   15:06:35  ( -70.09, 129.76)    2.31                45
 11/02/2018   15:56:34   (  69.96, -62.79) 11/02/2018   15:56:02  (  69.98, -62.75)    3.15                32
 11/05/2018   06:32:17   (  70.90,  76.85) 11/05/2018   06:33:24  (  70.78,  79.03)   80.43                67
 11/05/2018   07:22:44   ( -70.02,-114.43) 11/05/2018   07:23:06  ( -70.02,-114.46)    1.22                22
 11/05/2018   08:13:28   (  69.91,  53.06) 11/05/2018   08:12:33  (  69.91,  53.03)    1.00                55
 11/07/2018   22:48:57   (  70.12,-166.12) 11/07/2018   22:50:06  (  70.10,-166.09)    1.61                69
 11/07/2018   23:39:39   ( -70.02,   1.34) 11/07/2018   23:39:36  ( -70.00,   1.40)    3.06                 3
 11/08/2018   00:30:18   (  69.65, 169.22) 11/08/2018   00:29:06  (  69.72, 168.65)   23.41                72