Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 4 17.  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   17:23:52   (  81.33, -38.37) 04/17/2018   17:23:17  (  81.32, -38.50)    2.25                35
 04/17/2018   18:13:18   ( -81.34, 129.53) 04/17/2018   18:13:56  ( -81.34, 129.66)    2.20                38
 04/20/2018   12:58:06   (  81.31,  27.79) 04/20/2018   12:57:35  (  81.32,  27.94)    2.71                31
 04/20/2018   13:47:32   ( -81.33,-164.28) 04/20/2018   13:48:15  ( -81.33,-164.26)    0.46                43
 04/23/2018   08:32:19   (  81.31,  94.30) 04/23/2018   08:31:53  (  81.32,  94.36)    1.25                26
 04/23/2018   09:21:45   ( -81.33, -97.74) 04/23/2018   09:22:33  ( -81.33, -97.81)    1.09                48
 04/26/2018   04:06:31   (  81.32, 160.77) 04/26/2018   04:06:10  (  81.32, 160.77)    0.42                21
 04/26/2018   04:55:57   ( -81.34, -31.25) 04/26/2018   04:56:50  ( -81.33, -31.38)    2.26                53
 04/28/2018   23:40:44   (  81.32,-132.79) 04/28/2018   23:40:28  (  81.32,-132.85)    0.95                16