Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2017 12 10.  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)
 12/12/2017   10:53:42   ( -81.31,-116.08) 12/12/2017   10:54:14  ( -81.31,-116.04)    0.76                32
 12/12/2017   11:44:22   (  81.31,  51.58) 12/12/2017   11:43:40  (  81.31,  51.68)    1.65                42
 12/15/2017   06:28:05   ( -81.31, -49.69) 12/15/2017   06:28:28  ( -81.31, -49.61)    1.51                23
 12/15/2017   07:18:45   (  81.31, 117.92) 12/15/2017   07:17:54  (  81.31, 118.09)    2.93                51
 12/18/2017   02:02:27   ( -81.31,  16.68) 12/18/2017   02:02:41  ( -81.31,  16.84)    2.75                14
 12/18/2017   02:53:06   (  81.32,-175.36) 12/18/2017   02:52:07  (  81.31,-175.47)    2.16                59
 12/20/2017   21:36:49   ( -81.31,  83.43) 12/20/2017   21:36:55  ( -81.31,  83.30)    2.20                 6
 12/20/2017   22:27:29   (  81.32,-109.05) 12/20/2017   22:26:21  (  81.31,-109.03)    0.92                68
 12/23/2017   16:20:32   (  81.31, -18.04) 12/23/2017   16:21:42  (  81.31, -17.86)    2.99                70