Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-B
TLE Epoch: 2021 4 19.  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   14:43:43   (  81.11,  -1.71) 04/19/2021   14:42:47  (  81.12,  -1.75)    0.86                56
 04/19/2021   15:33:08   ( -81.16, 166.59) 04/19/2021   15:33:25  ( -81.15, 166.45)    2.69                17
 04/22/2021   10:17:55   (  81.13,  65.01) 04/22/2021   10:17:06  (  81.12,  64.84)    2.90                49
 04/22/2021   11:07:21   ( -81.15,-127.03) 04/22/2021   11:07:44  ( -81.15,-126.94)    1.65                23
 04/25/2021   05:52:09   (  81.12, 131.32) 04/25/2021   05:51:26  (  81.13, 131.42)    1.88                43
 04/25/2021   06:41:35   ( -81.15, -60.69) 04/25/2021   06:42:05  ( -81.15, -60.71)    0.37                30
 04/28/2021   01:26:22   (  81.14,-162.04) 04/28/2021   01:25:46  (  81.13,-162.02)    0.40                36
 04/28/2021   02:15:48   ( -81.16,   5.98) 04/28/2021   02:16:25  ( -81.15,   5.88)    1.92                37
 04/30/2021   21:00:35   (  81.12, -95.79) 04/30/2021   21:00:06  (  81.13, -95.86)    1.13                29