Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 12 25.  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)
 12/26/2017   04:13:43   (  81.28, 158.89) 12/26/2017   04:12:43  (  81.28, 159.07)    3.05                60
 12/26/2017   05:03:09   ( -81.30, -33.19) 12/26/2017   05:03:23  ( -81.29, -33.14)    0.94                14
 12/28/2017   23:47:58   (  81.27,-134.90) 12/28/2017   23:47:03  (  81.27,-134.87)    0.71                55
 12/29/2017   00:37:24   ( -81.28,  33.05) 12/29/2017   00:37:43  ( -81.28,  32.93)    1.93                19
 12/31/2017   19:22:11   (  81.27, -68.35) 12/31/2017   19:21:21  (  81.27, -68.44)    1.54                50
 12/31/2017   20:11:37   ( -81.29,  99.62) 12/31/2017   20:12:00  ( -81.29,  99.76)    2.46                23
 01/03/2018   14:56:25   (  81.28,  -1.85) 01/03/2018   14:55:40  (  81.27,  -2.03)    3.08                45
 01/03/2018   15:45:51   ( -81.30, 166.14) 01/03/2018   15:46:19  ( -81.29, 166.19)    0.79                28
 01/06/2018   10:30:39   (  81.28,  64.62) 01/06/2018   10:29:58  (  81.28,  64.76)    2.49                41