Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 7 18.  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)
 07/20/2021   09:35:46   (  81.26,  81.09) 07/20/2021   09:36:54  (  81.26,  80.90)    3.28                68
 07/20/2021   10:26:27   ( -81.26,-111.60) 07/20/2021   10:26:21  ( -81.25,-111.55)    0.91                 6
 07/23/2021   05:10:10   (  81.25, 147.17) 07/23/2021   05:11:06  (  81.25, 147.18)    0.22                56
 07/23/2021   06:00:49   ( -81.26, -44.74) 07/23/2021   06:00:32  ( -81.27, -44.87)    2.16                17
 07/26/2021   00:44:33   (  81.25,-146.37) 07/26/2021   00:45:17  (  81.26,-146.19)    3.17                44
 07/26/2021   01:35:13   ( -81.26,  21.33) 07/26/2021   01:34:44  ( -81.26,  21.41)    1.38                29
 07/28/2021   20:18:55   (  81.25, -79.92) 07/28/2021   20:19:28  (  81.25, -79.96)    0.91                33
 07/28/2021   21:09:34   ( -81.27,  88.17) 07/28/2021   21:08:54  ( -81.27,  88.04)    2.22                40
 07/31/2021   15:53:18   (  81.25, -13.48) 07/31/2021   15:53:39  (  81.25, -13.39)    1.57                21