Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2021 4 8.  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)
 04/10/2021   11:31:58   (  81.41,  51.35) 04/10/2021   11:31:48  (  81.42,  51.20)    2.75                10
 04/10/2021   12:21:25   ( -81.41,-141.08) 04/10/2021   12:22:28  ( -81.41,-141.27)    3.24                63
 04/13/2021   07:06:11   (  81.41, 117.82) 04/13/2021   07:06:08  (  81.41, 117.65)    2.91                 3
 04/13/2021   07:55:38   ( -81.41, -74.58) 04/13/2021   07:56:47  ( -81.40, -74.39)    3.37                69
 04/16/2021   01:50:59   ( -81.41,  16.60) 04/16/2021   01:49:49  ( -81.42,  16.42)    3.14                70
 04/16/2021   02:40:25   (  81.41,-175.73) 04/16/2021   02:40:29  (  81.41,-175.91)    3.00                 4
 04/18/2021   21:25:13   ( -81.41,  83.04) 04/18/2021   21:24:10  ( -81.42,  82.88)    2.78                63
 04/18/2021   22:14:39   (  81.41,-109.32) 04/18/2021   22:14:50  (  81.41,-109.49)    2.92                11
 04/21/2021   16:59:26   ( -81.41, 149.44) 04/21/2021   16:58:30  ( -81.42, 149.31)    2.30                56