Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-B
TLE Epoch: 2017 4 20.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2017   01:50:56   ( -81.09,  11.02) 04/21/2017   01:50:10  ( -81.09,  11.03)    0.33                46
 04/21/2017   02:40:21   (  81.12, 179.12) 04/21/2017   02:40:48  (  81.12, 179.25)    2.39                27
 04/23/2017   21:25:09   ( -81.10,  77.58) 04/23/2017   21:24:31  ( -81.10,  77.71)    2.22                38
 04/23/2017   22:14:34   (  81.12,-114.35) 04/23/2017   22:15:10  (  81.12,-114.48)    2.33                36
 04/26/2017   16:59:22   ( -81.10, 144.11) 04/26/2017   16:58:53  ( -81.10, 144.00)    1.98                29
 04/26/2017   17:48:47   (  81.13, -47.85) 04/26/2017   17:49:31  (  81.13, -47.84)    0.21                44
 04/29/2017   12:33:34   ( -81.10,-149.40) 04/29/2017   12:33:13  ( -81.10,-149.35)    0.83                21
 04/29/2017   13:22:59   (  81.13,  18.61) 04/29/2017   13:23:51  (  81.13,  18.77)    2.77                52
 05/02/2017   08:07:47   ( -81.11, -82.95) 05/02/2017   08:07:35  ( -81.10, -83.10)    2.62                12