Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 4 6.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(METOP-A) METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2018   06:41:14   (  81.31, 121.97) 04/09/2018   06:40:25  (  81.31, 121.88)    1.54                49
 04/09/2018   07:30:40   ( -81.32, -70.10) 04/09/2018   07:31:04  ( -81.33, -69.98)    2.07                24
 04/12/2018   02:15:26   (  81.32,-171.37) 04/12/2018   02:14:41  (  81.32,-171.23)    2.36                45
 04/12/2018   03:04:52   ( -81.33,  -3.42) 04/12/2018   03:05:21  ( -81.33,  -3.44)    0.84                29
 04/14/2018   21:49:40   (  81.31,-105.12) 04/14/2018   21:49:00  (  81.31,-105.14)    0.60                40
 04/14/2018   22:39:06   ( -81.33,  62.86) 04/14/2018   22:39:40  ( -81.32,  62.69)    2.92                34
 04/17/2018   17:23:53   (  81.32, -38.52) 04/17/2018   17:23:18  (  81.31, -38.66)    2.39                35
 04/17/2018   18:13:19   ( -81.34, 129.49) 04/17/2018   18:13:57  ( -81.33, 129.58)    1.69                38
 04/20/2018   12:58:05   (  81.32,  28.06) 04/20/2018   12:57:34  (  81.32,  28.20)    2.34                31