Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 5 10.  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)
 05/12/2017   07:06:02   ( -81.20, -65.38) 05/12/2017   07:05:39  ( -81.20, -65.21)    3.01                23
 05/12/2017   07:55:27   (  81.22, 102.74) 05/12/2017   07:56:18  (  81.22, 102.73)    0.49                51
 05/15/2017   02:40:18   ( -81.20,   1.19) 05/15/2017   02:39:59  ( -81.21,   1.34)    2.68                19
 05/15/2017   03:29:44   (  81.21, 168.90) 05/15/2017   03:30:39  (  81.21, 168.89)    0.55                55
 05/17/2017   22:14:35   ( -81.21,  67.72) 05/17/2017   22:14:20  ( -81.21,  67.88)    2.64                15
 05/17/2017   23:04:01   (  81.21,-124.58) 05/17/2017   23:05:00  (  81.22,-124.58)    0.42                59
 05/20/2017   17:48:52   ( -81.21, 134.23) 05/20/2017   17:48:41  ( -81.21, 134.40)    2.86                11
 05/20/2017   18:38:18   (  81.22, -58.10) 05/20/2017   18:39:21  (  81.22, -58.06)    0.82                63
 05/23/2017   13:23:08   ( -81.22,-159.30) 05/23/2017   13:23:01  ( -81.22,-159.10)    3.32                 7