Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 12 6.  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)
 12/07/2018   06:32:13   (  71.07,  76.62) 12/07/2018   06:33:18  (  70.95,  79.31)   98.24                65
 12/07/2018   07:22:37   ( -70.04,-114.41) 12/07/2018   07:23:03  ( -70.02,-114.44)    2.69                26
 12/07/2018   08:13:21   (  69.92,  53.08) 12/07/2018   08:12:30  (  69.92,  53.05)    1.23                51
 12/09/2018   22:48:50   (  70.16,-166.13) 12/09/2018   22:50:01  (  70.16,-166.00)    4.88                71
 12/09/2018   23:39:31   ( -70.02,   1.40) 12/09/2018   23:39:32  ( -70.00,   1.41)    2.55                 1
 12/10/2018   00:30:13   (  69.80, 169.05) 12/10/2018   00:29:00  (  69.83, 168.82)    9.82                73
 12/12/2018   15:05:43   (  70.09, -50.24) 12/12/2018   15:06:31  (  70.07, -50.24)    1.39                48
 12/12/2018   15:56:24   ( -69.95, 117.30) 12/12/2018   15:56:01  ( -69.97, 117.25)    3.25                23
 12/15/2018   07:22:35   (  70.02,  65.65) 12/15/2018   07:22:59  (  70.04,  65.60)    3.31                24
 12/15/2018   08:13:17   ( -69.92,-126.89) 12/15/2018   08:12:29  ( -69.94,-126.91)    1.81                48
 12/17/2018   22:48:48   ( -70.27,  13.73) 12/17/2018   22:49:59  ( -70.23,  14.11)   14.60                71
 12/17/2018   23:39:29   (  70.00,-178.55) 12/17/2018   23:39:28  (  70.01,-178.57)    0.93                 1
 12/18/2018   00:30:11   ( -69.90, -11.09) 12/18/2018   00:28:58  ( -69.91, -11.07)    0.45                73
 12/20/2018   15:05:39   ( -70.09, 129.79) 12/20/2018   15:06:30  ( -70.09, 129.78)    0.48                51
 12/20/2018   15:56:23   (  69.99, -62.75) 12/20/2018   15:55:57  (  69.97, -62.74)    1.97                26