Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 4 14.  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)
 04/15/2021   21:10:27   (  81.31, -91.16) 04/15/2021   21:10:38  (  81.32, -91.02)    2.63                11
 04/15/2021   22:01:06   ( -81.32,  76.67) 04/15/2021   22:00:05  ( -81.31,  76.52)    2.73                61
 04/18/2021   16:44:48   (  81.31, -24.92) 04/18/2021   16:44:52  (  81.31, -24.81)    1.87                 4
 04/18/2021   17:35:26   ( -81.32, 143.33) 04/18/2021   17:34:18  ( -81.32, 143.13)    3.31                68
 04/21/2021   11:28:27   ( -81.31,-126.08) 04/21/2021   11:29:38  ( -81.31,-125.97)    1.96                71
 04/21/2021   12:19:07   (  81.31,  41.70) 04/21/2021   12:19:04  (  81.31,  41.74)    0.63                 3
 04/24/2021   07:02:47   ( -81.31, -59.46) 04/24/2021   07:03:51  ( -81.31, -59.43)    0.79                64
 04/24/2021   07:53:27   (  81.32, 108.30) 04/24/2021   07:53:17  (  81.32, 108.25)    0.95                10
 04/27/2021   02:37:08   ( -81.31,   6.76) 04/27/2021   02:38:05  ( -81.30,   6.68)    1.60                57