Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 4 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)
 04/22/2017   14:06:20   ( -81.15,-171.96) 04/22/2017   14:05:15  ( -81.15,-171.78)    3.13                65
 04/22/2017   14:55:46   (  81.15,  -4.24) 04/22/2017   14:55:55  (  81.15,  -4.34)    1.68                 9
 04/25/2017   09:40:34   ( -81.13,-105.78) 04/25/2017   09:39:38  ( -81.13,-105.84)    0.95                56
 04/25/2017   10:29:59   (  81.16,  62.28) 04/25/2017   10:30:16  (  81.16,  62.34)    1.18                17
 04/28/2017   05:14:46   ( -81.13, -39.28) 04/28/2017   05:13:58  ( -81.14, -39.16)    2.08                48
 04/28/2017   06:04:11   (  81.16, 128.75) 04/28/2017   06:04:37  (  81.15, 128.63)    2.24                26
 05/01/2017   00:48:59   ( -81.13,  27.19) 05/01/2017   00:48:20  ( -81.13,  27.12)    1.26                39
 05/01/2017   01:38:24   (  81.16,-164.80) 05/01/2017   01:38:58  (  81.16,-164.73)    1.37                34
 05/03/2017   20:23:12   ( -81.13,  93.62) 05/03/2017   20:22:41  ( -81.14,  93.75)    2.46                31