Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 6 25.  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)
 06/25/2021   03:07:41   (  81.26, 178.15) 06/25/2021   03:08:02  (  81.26, 178.29)    2.42                21
 06/25/2021   03:58:21   ( -81.27, -14.03) 06/25/2021   03:57:29  ( -81.26, -14.16)    2.56                52
 06/27/2021   22:42:03   (  81.26,-115.25) 06/27/2021   22:42:13  (  81.27,-115.10)    2.85                10
 06/27/2021   23:32:43   ( -81.27,  52.59) 06/27/2021   23:31:40  ( -81.27,  52.47)    1.95                63
 06/30/2021   17:25:47   ( -81.25, 143.51) 06/30/2021   17:27:00  ( -81.25, 143.42)    1.54                73
 06/30/2021   18:16:27   (  81.26, -49.06) 06/30/2021   18:16:26  (  81.26, -48.90)    2.76                 1
 06/30/2021   19:07:00   ( -81.31, 121.52) 06/30/2021   19:05:46  ( -81.40, 121.35)   10.83                74
 07/03/2021   13:00:10   ( -81.26,-149.92) 07/03/2021   13:01:12  ( -81.26,-150.02)    1.74                62
 07/03/2021   13:50:50   (  81.26,  17.50) 07/03/2021   13:50:38  (  81.26,  17.64)    2.45                12
 07/06/2021   08:34:33   ( -81.25, -83.76) 07/06/2021   08:35:24  ( -81.25, -83.86)    1.94                51