Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 10 12.  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)
 10/14/2018   22:48:57   ( -70.12,  13.86) 10/14/2018   22:50:00  ( -70.11,  13.94)    2.95                63
 10/14/2018   23:39:41   (  70.01,-178.66) 10/14/2018   23:39:27  (  70.00,-178.58)    3.16                14
 10/15/2018   00:30:15   ( -69.49, -10.57) 10/15/2018   00:29:04  ( -69.51, -11.61)   40.55                71
 10/17/2018   15:05:51   ( -70.05, 129.74) 10/17/2018   15:06:31  ( -70.06, 129.74)    0.46                40
 10/17/2018   15:56:35   (  69.94, -62.78) 10/17/2018   15:55:58  (  69.94, -62.78)    0.08                37
 10/20/2018   06:32:14   (  70.66,  77.24) 10/20/2018   06:33:23  (  70.59,  78.76)   56.59                69
 10/20/2018   07:22:46   ( -70.04,-114.46) 10/20/2018   07:23:01  ( -70.05,-114.39)    3.03                15
 10/20/2018   08:13:30   (  69.93,  53.01) 10/20/2018   08:12:28  (  69.93,  53.09)    2.97                62
 10/22/2018   22:48:57   (  70.07,-166.06) 10/22/2018   22:50:01  (  70.08,-166.11)    2.27                64
 10/22/2018   23:39:39   ( -69.97,   1.41) 10/22/2018   23:39:31  ( -69.98,   1.39)    1.75                 8
 10/23/2018   00:30:15   (  69.44, 169.50) 10/23/2018   00:29:05  (  69.48, 168.34)   45.56                70
 10/25/2018   15:05:52   (  70.06, -50.27) 10/25/2018   15:06:31  (  70.06, -50.25)    0.87                39
 10/25/2018   15:56:34   ( -69.96, 117.20) 10/25/2018   15:56:01  ( -69.97, 117.25)    2.21                33