Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 3 20.  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)
 03/20/2018   14:31:05   ( -81.32,-175.19) 03/20/2018   14:30:59  ( -81.31,-175.29)    1.65                 6
 03/20/2018   15:20:31   (  81.32,  -7.44) 03/20/2018   15:21:38  (  81.33,  -7.27)    2.83                67
 03/23/2018   10:05:18   ( -81.32,-108.67) 03/23/2018   10:05:14  ( -81.32,-108.53)    2.37                 4
 03/23/2018   10:54:44   (  81.33,  59.05) 03/23/2018   10:55:54  (  81.33,  59.05)    0.12                70
 03/26/2018   04:50:22   (  80.92, 144.01) 03/26/2018   04:49:08  (  81.11, 143.63)   21.61                74
 03/26/2018   05:39:32   ( -81.32, -42.19) 03/26/2018   05:39:31  ( -81.32, -42.18)    0.59                 1
 03/26/2018   06:28:58   (  81.33, 125.51) 03/26/2018   06:30:11  (  81.32, 125.35)    2.77                73
 03/29/2018   00:24:20   (  81.30,-143.74) 03/29/2018   00:23:08  (  81.31,-143.59)    2.51                72
 03/29/2018   01:13:46   ( -81.32,  24.26) 03/29/2018   01:13:48  ( -81.32,  24.14)    2.20                 2
 03/31/2018   19:58:33   (  81.30, -77.34) 03/31/2018   19:57:24  (  81.30, -77.32)    0.40                69