Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 5 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)
 05/20/2017   17:48:52   ( -81.21, 134.21) 05/20/2017   17:48:41  ( -81.21, 134.38)    2.86                11
 05/20/2017   18:38:18   (  81.22, -58.04) 05/20/2017   18:39:21  (  81.22, -58.01)    0.65                63
 05/23/2017   13:23:08   ( -81.22,-159.32) 05/23/2017   13:23:02  ( -81.21,-159.49)    3.08                 6
 05/23/2017   14:12:34   (  81.22,   8.39) 05/23/2017   14:13:41  (  81.22,   8.49)    1.76                67
 05/26/2017   08:57:25   ( -81.22, -92.90) 05/26/2017   08:57:23  ( -81.21, -93.00)    1.89                 2
 05/26/2017   09:46:51   (  81.22,  74.80) 05/26/2017   09:48:02  (  81.23,  74.98)    3.30                71
 05/29/2017   03:42:16   (  81.19, 165.47) 05/29/2017   03:41:05  (  81.19, 165.44)    0.58                71
 05/29/2017   04:31:42   ( -81.21, -26.50) 05/29/2017   04:31:44  ( -81.21, -26.52)    0.27                 2
 05/31/2017   23:16:31   (  81.21,-127.82) 05/31/2017   23:15:24  (  81.20,-127.71)    1.83                67