Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2018 12 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)
 12/21/2018   10:48:49   ( -81.43,-116.89) 12/21/2018   10:48:13  ( -81.43,-116.85)    0.82                36
 12/21/2018   11:38:16   (  81.42,  50.52) 12/21/2018   11:38:53  (  81.43,  50.63)    1.96                37
 12/24/2018   06:23:06   ( -81.42, -50.77) 12/24/2018   06:22:29  ( -81.42, -50.83)    1.29                37
 12/24/2018   07:12:32   (  81.42, 117.00) 12/24/2018   07:13:08  (  81.43, 117.02)    0.55                36
 12/27/2018   01:57:22   ( -81.43,  15.89) 12/27/2018   01:56:43  ( -81.43,  15.97)    1.34                39
 12/27/2018   02:46:47   (  81.43,-176.37) 12/27/2018   02:47:21  (  81.43,-176.21)    2.68                34
 12/29/2018   21:31:38   ( -81.43,  82.28) 12/29/2018   21:30:57  ( -81.43,  82.34)    1.00                41
 12/29/2018   22:21:04   (  81.43,-110.00) 12/29/2018   22:21:36  (  81.43,-109.86)    2.40                32
 01/01/2019   17:05:55   ( -81.43, 148.82) 01/01/2019   17:05:12  ( -81.43, 148.70)    2.02                43