Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 12 31.  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)
 12/31/2017   19:22:12   (  81.27, -68.37) 12/31/2017   19:21:22  (  81.27, -68.49)    2.02                50
 12/31/2017   20:11:38   ( -81.29,  99.55) 12/31/2017   20:12:01  ( -81.29,  99.67)    2.16                23
 01/03/2018   14:56:25   (  81.28,  -1.84) 01/03/2018   14:55:39  (  81.28,  -1.68)    2.64                46
 01/03/2018   15:45:51   ( -81.29, 166.10) 01/03/2018   15:46:19  ( -81.29, 166.10)    0.24                28
 01/06/2018   10:30:39   (  81.28,  64.65) 01/06/2018   10:29:58  (  81.28,  64.71)    0.98                41
 01/06/2018   11:20:05   ( -81.30,-127.39) 01/06/2018   11:20:38  ( -81.29,-127.50)    2.06                33
 01/09/2018   06:04:53   (  81.28, 131.11) 01/09/2018   06:04:17  (  81.28, 131.09)    0.36                36
 01/09/2018   06:54:19   ( -81.30, -60.91) 01/09/2018   06:54:56  ( -81.30, -60.73)    2.99                37
 01/12/2018   01:39:06   (  81.28,-162.47) 01/12/2018   01:38:35  (  81.28,-162.55)    1.38                31