Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2018 1 17.  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)
 01/18/2018   15:06:08   ( -70.14, 129.76) 01/18/2018   15:06:40  ( -70.13, 129.80)    1.39                32
 01/18/2018   15:56:52   (  70.03, -62.76) 01/18/2018   15:56:07  (  70.03, -62.70)    2.44                45
 01/21/2018   06:32:25   (  70.43,  77.75) 01/21/2018   06:33:36  (  70.34,  78.34)   24.32                71
 01/21/2018   07:23:02   ( -70.07,-114.37) 01/21/2018   07:23:09  ( -70.06,-114.43)    2.48                 7
 01/21/2018   08:13:46   (  69.96,  53.10) 01/21/2018   08:12:36  (  69.96,  53.07)    1.39                70
 01/23/2018   22:49:14   (  70.16,-166.05) 01/23/2018   22:50:06  (  70.15,-166.05)    1.34                52
 01/23/2018   23:39:56   ( -70.06,   1.42) 01/23/2018   23:39:36  ( -70.03,   1.42)    2.62                20
 01/24/2018   00:30:24   (  69.10, 170.12) 01/24/2018   00:29:17  (  69.15, 167.87)   89.02                67
 01/26/2018   15:06:08   (  70.09, -50.19) 01/26/2018   15:06:34  (  70.11, -50.22)    2.36                26
 01/26/2018   15:56:50   ( -69.99, 117.28) 01/26/2018   15:56:04  ( -70.01, 117.26)    1.56                46
 01/29/2018   06:32:22   ( -70.34,-102.12) 01/29/2018   06:33:33  ( -70.30,-101.71)   16.00                71
 01/29/2018   07:23:03   (  70.08,  65.59) 01/29/2018   07:23:02  (  70.08,  65.61)    1.14                 1
 01/29/2018   08:13:45   ( -69.98,-126.93) 01/29/2018   08:12:32  ( -69.97,-126.90)    1.60                73