Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2021 5 15.  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)
 05/17/2021   00:18:10   (  81.39,-139.75) 05/17/2021   00:17:06  (  81.38,-139.65)    2.07                64
 05/17/2021   01:07:38   ( -81.37,  27.45) 05/17/2021   01:07:47  ( -81.38,  27.62)    3.22                 9
 05/19/2021   19:52:27   (  81.39, -73.30) 05/19/2021   19:51:28  (  81.38, -73.25)    1.75                59
 05/19/2021   20:41:55   ( -81.37,  93.91) 05/19/2021   20:42:09  ( -81.38,  94.05)    2.41                14
 05/22/2021   15:26:44   (  81.39,  -6.90) 05/22/2021   15:25:50  (  81.38,  -6.87)    1.59                54
 05/22/2021   16:16:12   ( -81.37, 160.34) 05/22/2021   16:16:31  ( -81.38, 160.46)    1.99                19
 05/25/2021   11:01:01   (  81.39,  59.47) 05/25/2021   11:00:12  (  81.38,  59.49)    1.32                49
 05/25/2021   11:50:29   ( -81.37,-133.26) 05/25/2021   11:50:53  ( -81.38,-133.15)    1.97                24
 05/28/2021   06:35:17   (  81.39, 125.81) 05/28/2021   06:34:33  (  81.38, 125.84)    0.95                44