Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 4 15.  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)
 04/17/2018   17:23:53   (  81.32, -38.50) 04/17/2018   17:23:18  (  81.32, -38.63)    2.32                35
 04/17/2018   18:13:19   ( -81.33, 129.43) 04/17/2018   18:13:57  ( -81.33, 129.54)    1.87                38
 04/20/2018   12:58:05   (  81.33,  28.06) 04/20/2018   12:57:34  (  81.33,  28.20)    2.30                31
 04/20/2018   13:47:32   ( -81.32,-164.37) 04/20/2018   13:48:15  ( -81.33,-164.38)    0.63                43
 04/23/2018   08:32:18   (  81.33,  94.59) 04/23/2018   08:31:52  (  81.33,  94.62)    0.76                26
 04/23/2018   09:21:45   ( -81.33, -97.81) 04/23/2018   09:22:33  ( -81.33, -97.93)    1.92                48
 04/26/2018   04:06:32   (  81.31, 160.71) 04/26/2018   04:06:11  (  81.32, 160.64)    1.30                21
 04/26/2018   04:55:58   ( -81.33, -31.29) 04/26/2018   04:56:50  ( -81.34, -31.11)    3.08                52
 04/28/2018   23:40:44   (  81.31,-132.82) 04/28/2018   23:40:28  (  81.32,-132.98)    2.59                16