Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2017 12 11.  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,-116.17) 12/12/2017   10:54:14  ( -81.30,-116.12)    1.11                32
 12/12/2017   11:44:21   (  81.32,  51.89) 12/12/2017   11:43:39  (  81.33,  51.95)    1.38                42
 12/15/2017   06:28:04   ( -81.31, -49.40) 12/15/2017   06:28:27  ( -81.32, -49.33)    1.44                23
 12/15/2017   07:18:44   (  81.32, 118.23) 12/15/2017   07:17:53  (  81.32, 118.35)    2.14                51
 12/18/2017   02:02:27   ( -81.31,  16.98) 12/18/2017   02:02:41  ( -81.32,  17.09)    2.10                14
 12/18/2017   02:53:06   (  81.32,-175.05) 12/18/2017   02:52:07  (  81.32,-175.24)    3.25                59
 12/20/2017   21:36:49   ( -81.31,  83.34) 12/20/2017   21:36:54  ( -81.32,  83.52)    3.19                 5
 12/20/2017   22:27:28   (  81.32,-108.74) 12/20/2017   22:26:20  (  81.32,-108.83)    1.53                68
 12/23/2017   16:20:31   (  81.31, -17.73) 12/23/2017   16:21:41  (  81.32, -17.70)    0.85                70