Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-B
TLE Epoch: 2017 4 21.  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)
 04/23/2017   21:25:09   ( -81.10,  77.65) 04/23/2017   21:24:31  ( -81.10,  77.79)    2.30                38
 04/23/2017   22:14:34   (  81.13,-114.27) 04/23/2017   22:15:10  (  81.12,-114.39)    2.32                36
 04/26/2017   16:59:21   ( -81.11, 144.16) 04/26/2017   16:58:52  ( -81.10, 144.07)    1.84                29
 04/26/2017   17:48:46   (  81.13, -47.78) 04/26/2017   17:49:30  (  81.13, -47.77)    0.44                44
 04/29/2017   12:33:34   ( -81.11,-149.37) 04/29/2017   12:33:13  ( -81.11,-149.30)    1.15                21
 04/29/2017   13:22:59   (  81.13,  18.66) 04/29/2017   13:23:51  (  81.14,  18.83)    3.05                52
 05/02/2017   08:07:47   ( -81.11, -82.95) 05/02/2017   08:07:35  ( -81.10, -83.07)    2.13                12
 05/02/2017   08:57:12   (  81.13,  85.05) 05/02/2017   08:58:13  (  81.13,  85.04)    0.23                61
 05/05/2017   03:41:59   ( -81.10, -16.57) 05/05/2017   03:41:55  ( -81.11, -16.48)    1.67                 4