Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-B
TLE Epoch: 2021 4 17.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2021   14:43:42   (  81.13,  -1.46) 04/19/2021   14:42:46  (  81.13,  -1.50)    0.77                56
 04/19/2021   15:33:08   ( -81.15, 166.50) 04/19/2021   15:33:25  ( -81.14, 166.34)    2.72                17
 04/22/2021   10:17:56   (  81.12,  64.90) 04/22/2021   10:17:07  (  81.12,  64.73)    2.98                49
 04/22/2021   11:07:22   ( -81.15,-127.12) 04/22/2021   11:07:45  ( -81.15,-127.03)    1.50                23
 04/25/2021   05:52:08   (  81.14, 131.59) 04/25/2021   05:51:25  (  81.14, 131.69)    1.76                43
 04/25/2021   06:41:35   ( -81.14, -60.76) 04/25/2021   06:42:05  ( -81.14, -60.80)    0.68                30
 04/28/2021   01:26:22   (  81.13,-162.11) 04/28/2021   01:25:46  (  81.13,-162.11)    0.12                36
 04/28/2021   02:15:48   ( -81.16,   5.92) 04/28/2021   02:16:25  ( -81.15,   5.80)    2.19                37
 04/30/2021   21:00:36   (  81.12, -95.84) 04/30/2021   21:00:07  (  81.12, -95.93)    1.54                29