Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2017 12 20.  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)
 12/20/2017   21:36:49   ( -81.31,  83.19) 12/20/2017   21:36:59  ( -81.31,  83.26)    1.47                10
 12/20/2017   22:27:28   (  81.32,-108.82) 12/20/2017   22:26:25  (  81.31,-108.96)    2.39                63
 12/23/2017   17:11:11   ( -81.32, 149.89) 12/23/2017   17:11:15  ( -81.31, 149.71)    3.28                 4
 12/23/2017   18:01:51   (  81.32, -42.55) 12/23/2017   18:00:41  (  81.31, -42.53)    0.75                70
 12/26/2017   11:54:54   (  81.31,  48.41) 12/26/2017   11:56:04  (  81.31,  48.53)    2.11                70
 12/26/2017   12:45:33   ( -81.32,-143.43) 12/26/2017   12:45:30  ( -81.32,-143.51)    1.57                 3
 12/29/2017   07:29:16   (  81.31, 115.02) 12/29/2017   07:30:20  (  81.30, 114.87)    2.77                64
 12/29/2017   08:19:56   ( -81.32, -77.16) 12/29/2017   08:19:46  ( -81.32, -77.16)    0.31                10
 01/01/2018   03:03:37   (  81.31,-178.39) 01/01/2018   03:04:34  (  81.31,-178.46)    1.23                57