Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2021 4 12.  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)
 04/13/2021   07:06:11   (  81.41, 117.85) 04/13/2021   07:06:08  (  81.41, 117.68)    2.81                 3
 04/13/2021   07:55:38   ( -81.41, -74.60) 04/13/2021   07:56:48  ( -81.41, -74.79)    3.17                70
 04/16/2021   01:50:59   ( -81.41,  16.57) 04/16/2021   01:49:49  ( -81.42,  16.42)    2.89                70
 04/16/2021   02:40:25   (  81.41,-175.72) 04/16/2021   02:40:29  (  81.41,-175.88)    2.73                 4
 04/18/2021   21:25:13   ( -81.41,  83.00) 04/18/2021   21:24:10  ( -81.42,  82.88)    2.28                63
 04/18/2021   22:14:39   (  81.41,-109.32) 04/18/2021   22:14:50  (  81.41,-109.46)    2.36                11
 04/21/2021   16:59:26   ( -81.41, 149.39) 04/21/2021   16:58:30  ( -81.42, 149.33)    1.55                56
 04/21/2021   17:48:52   (  81.41, -42.95) 04/21/2021   17:49:10  (  81.41, -43.05)    1.66                18
 04/24/2021   12:33:40   ( -81.40,-144.25) 04/24/2021   12:32:51  ( -81.41,-144.25)    1.24                49