Simultaneous Nadir Overpasses (SNOs) between METOP-C and LANDSAT-8
TLE Epoch: 2021 5 20.  Predictions up to the next  14.0 days:

     Date     Time(METOP-C) METOP-C Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2021   20:29:03   ( -81.14,  92.79) 05/21/2021   20:29:46  ( -81.14,  92.74)    0.82                43
 05/21/2021   21:19:42   (  81.16, -99.24) 05/21/2021   21:19:11  (  81.17, -99.15)    1.65                31
 05/24/2021   16:03:25   ( -81.14, 159.17) 05/24/2021   16:04:03  ( -81.13, 159.15)    0.60                38
 05/24/2021   16:54:04   (  81.16, -32.93) 05/24/2021   16:53:28  (  81.16, -32.77)    2.80                36
 05/27/2021   11:37:45   ( -81.15,-134.08) 05/27/2021   11:38:18  ( -81.15,-134.12)    0.71                33
 05/27/2021   12:28:24   (  81.17,  33.75) 05/27/2021   12:27:44  (  81.16,  33.58)    2.95                40
 05/30/2021   07:12:07   ( -81.15, -67.73) 05/30/2021   07:12:35  ( -81.15, -67.78)    0.69                28
 05/30/2021   08:02:45   (  81.17, 100.40) 05/30/2021   08:02:00  (  81.17, 100.27)    2.27                45
 06/02/2021   02:46:29   ( -81.14,  -1.40) 06/02/2021   02:46:52  ( -81.14,  -1.47)    1.23                23