Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 5 9.  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)
 05/10/2018   05:08:27   ( -81.00, -39.69) 05/10/2018   05:07:13  ( -81.16, -40.14)   19.19                74
 05/10/2018   05:57:39   (  81.33, 133.20) 05/10/2018   05:57:38  (  81.33, 133.10)    1.60                 1
 05/10/2018   06:47:05   ( -81.35, -58.90) 05/10/2018   06:48:17  ( -81.35, -58.77)    2.18                72
 05/13/2018   00:42:26   ( -81.31,  31.65) 05/13/2018   00:41:16  ( -81.32,  31.56)    1.47                70
 05/13/2018   01:31:51   (  81.34,-160.24) 05/13/2018   01:31:54  (  81.34,-160.17)    1.11                 3
 05/15/2018   20:16:39   ( -81.32,  98.21) 05/15/2018   20:15:33  ( -81.32,  98.27)    1.11                66
 05/15/2018   21:06:05   (  81.32, -94.08) 05/15/2018   21:06:13  (  81.33, -94.25)    2.85                 8
 05/18/2018   15:50:52   ( -81.33, 164.75) 05/18/2018   15:49:51  ( -81.32, 164.58)    2.85                61
 05/18/2018   16:40:18   (  81.33, -27.57) 05/18/2018   16:40:30  (  81.33, -27.56)    0.52                12
 05/21/2018   11:25:04   ( -81.33,-128.74) 05/21/2018   11:24:07  ( -81.33,-128.73)    0.33                57