Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 4 21.  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   ( -81.13,-172.16) 04/22/2017   14:05:15  ( -81.14,-171.98)    3.17                65
 04/22/2017   14:55:45   (  81.16,  -4.06) 04/22/2017   14:55:54  (  81.16,  -4.15)    1.69                 9
 04/25/2017   09:40:33   ( -81.14,-105.63) 04/25/2017   09:39:37  ( -81.14,-105.66)    0.65                56
 04/25/2017   10:29:58   (  81.17,  62.44) 04/25/2017   10:30:15  (  81.16,  62.53)    1.48                17
 04/28/2017   05:14:46   ( -81.14, -39.14) 04/28/2017   05:13:58  ( -81.15, -38.99)    2.64                48
 04/28/2017   06:04:11   (  81.17, 128.90) 04/28/2017   06:04:37  (  81.16, 128.81)    1.74                26
 05/01/2017   00:48:58   ( -81.14,  27.30) 05/01/2017   00:48:19  ( -81.14,  27.29)    0.27                39
 05/01/2017   01:38:23   (  81.17,-164.68) 05/01/2017   01:38:57  (  81.17,-164.55)    2.34                34
 05/03/2017   20:23:11   ( -81.14,  93.70) 05/03/2017   20:22:41  ( -81.14,  93.54)    2.69                30