Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2021 4 13.  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   (  81.42, 118.07) 04/13/2021   07:06:08  (  81.41, 117.90)    3.20                 3
 04/13/2021   07:55:39   ( -81.40, -74.78) 04/13/2021   07:56:48  ( -81.40, -74.58)    3.30                69
 04/16/2021   01:50:58   ( -81.42,  16.77) 04/16/2021   01:49:48  ( -81.42,  16.63)    2.43                70
 04/16/2021   02:40:25   (  81.40,-175.89) 04/16/2021   02:40:29  (  81.42,-176.05)    3.08                 4
 04/18/2021   21:25:12   ( -81.42,  83.20) 04/18/2021   21:24:09  ( -81.41,  83.09)    1.96                63
 04/18/2021   22:14:39   (  81.40,-109.49) 04/18/2021   22:14:50  (  81.41,-109.63)    2.68                11
 04/21/2021   16:59:26   ( -81.42, 149.60) 04/21/2021   16:58:30  ( -81.41, 149.54)    1.18                56
 04/21/2021   17:48:53   (  81.40, -43.12) 04/21/2021   17:49:11  (  81.41, -43.22)    2.21                18
 04/24/2021   12:33:39   ( -81.41,-144.05) 04/24/2021   12:32:50  ( -81.41,-144.03)    0.59                49