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

     Date     Time(METOP-B) METOP-B Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/10/2021   06:01:47   (  81.31, 135.68) 04/10/2021   06:02:12  (  81.30, 135.86)    2.94                25
 04/10/2021   06:52:25   ( -81.32, -56.05) 04/10/2021   06:51:38  ( -81.32, -56.22)    2.90                47
 04/13/2021   01:36:07   (  81.31,-157.64) 04/13/2021   01:36:25  (  81.32,-157.48)    2.83                18
 04/13/2021   02:26:46   ( -81.32,  10.24) 04/13/2021   02:25:52  ( -81.31,  10.09)    2.64                54
 04/15/2021   21:10:28   (  81.31, -91.38) 04/15/2021   21:10:39  (  81.31, -91.24)    2.39                11
 04/15/2021   22:01:05   ( -81.32,  76.90) 04/15/2021   22:00:04  ( -81.32,  76.73)    2.89                61
 04/18/2021   16:44:47   (  81.31, -24.74) 04/18/2021   16:44:51  (  81.31, -24.65)    1.57                 4
 04/18/2021   17:35:27   ( -81.31, 142.77) 04/18/2021   17:34:18  ( -81.31, 142.97)    3.25                69
 04/21/2021   11:28:28   ( -81.30,-126.24) 04/21/2021   11:29:39  ( -81.30,-126.13)    1.91                71
 04/21/2021   12:19:07   (  81.31,  41.88) 04/21/2021   12:19:04  (  81.32,  41.90)    0.83                 3