Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 4 12.  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)
 04/13/2021   01:36:07   (  81.31,-157.82) 04/13/2021   01:36:25  (  81.31,-157.64)    3.01                18
 04/13/2021   02:26:45   ( -81.32,  10.42) 04/13/2021   02:25:51  ( -81.32,  10.26)    2.59                54
 04/15/2021   21:10:27   (  81.31, -91.17) 04/15/2021   21:10:38  (  81.32, -91.01)    2.73                11
 04/15/2021   22:01:06   ( -81.32,  76.69) 04/15/2021   22:00:05  ( -81.31,  76.54)    2.57                61
 04/18/2021   16:44:48   (  81.31, -24.93) 04/18/2021   16:44:52  (  81.31, -24.80)    2.12                 4
 04/18/2021   17:35:26   ( -81.32, 143.33) 04/18/2021   17:34:18  ( -81.32, 143.15)    3.02                68
 04/21/2021   11:28:27   ( -81.30,-126.08) 04/21/2021   11:29:38  ( -81.31,-125.94)    2.50                71
 04/21/2021   12:19:07   (  81.31,  41.68) 04/21/2021   12:19:04  (  81.31,  41.75)    1.12                 3
 04/24/2021   07:02:47   ( -81.31, -59.47) 04/24/2021   07:03:51  ( -81.32, -59.40)    1.51                64