Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 12 18.  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)
 12/20/2017   13:05:15   (  81.27,  25.79) 12/20/2017   13:04:07  (  81.27,  25.74)    0.93                68
 12/20/2017   13:54:41   ( -81.28,-166.26) 12/20/2017   13:54:46  ( -81.29,-166.07)    3.19                 5
 12/23/2017   08:39:30   (  81.26,  92.16) 12/23/2017   08:38:25  (  81.27,  92.21)    1.11                65
 12/23/2017   09:28:56   ( -81.28, -99.87) 12/23/2017   09:29:05  ( -81.28, -99.96)    1.59                 9
 12/26/2017   04:13:45   (  81.28, 158.85) 12/26/2017   04:12:43  (  81.28, 159.05)    3.29                62
 12/26/2017   05:03:12   ( -81.28, -33.53) 12/26/2017   05:03:24  ( -81.28, -33.49)    0.84                12
 12/28/2017   23:48:01   (  81.27,-134.88) 12/28/2017   23:47:03  (  81.27,-134.91)    0.68                58
 12/29/2017   00:37:27   ( -81.29,  33.14) 12/29/2017   00:37:42  ( -81.29,  33.33)    3.21                15
 12/31/2017   19:22:15   (  81.28, -68.27) 12/31/2017   19:21:20  (  81.28, -68.12)    2.53                55