Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2021 4 16.  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)
 04/18/2021   21:25:12   ( -81.42,  83.17) 04/18/2021   21:24:09  ( -81.42,  83.05)    1.95                63
 04/18/2021   22:14:39   (  81.40,-109.49) 04/18/2021   22:14:50  (  81.42,-109.64)    2.82                11
 04/21/2021   16:59:26   ( -81.42, 149.56) 04/21/2021   16:58:30  ( -81.41, 149.50)    1.12                56
 04/21/2021   17:48:53   (  81.40, -43.13) 04/21/2021   17:49:11  (  81.41, -43.23)    2.36                18
 04/24/2021   12:33:39   ( -81.41,-144.08) 04/24/2021   12:32:50  ( -81.41,-144.07)    0.27                49
 04/24/2021   13:23:05   (  81.41,  23.59) 04/24/2021   13:23:30  (  81.40,  23.55)    1.41                25
 04/27/2021   08:07:53   ( -81.41, -77.76) 04/27/2021   08:07:11  ( -81.41, -77.65)    1.83                42
 04/27/2021   08:57:19   (  81.41,  89.88) 04/27/2021   08:57:51  (  81.40,  89.93)    1.10                32