Simultaneous Nadir Overpasses (SNOs) between METOP-A and TERRA
TLE Epoch: 2018 12 21.  Predictions up to the next  14.0 days:

     Date     Time(METOP-A) METOP-A Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2018   08:24:49   ( -81.43, -80.65) 12/23/2018   08:26:03  ( -81.24, -80.23)   22.66                74
 12/23/2018   09:15:18   (  81.44,  91.22) 12/23/2018   09:15:19  (  81.44,  91.35)    2.13                 1
 12/23/2018   10:05:58   ( -81.44,-101.04) 12/23/2018   10:04:46  ( -81.44,-101.11)    1.06                72
 12/26/2018   03:59:09   ( -81.41, -16.22) 12/26/2018   04:00:23  ( -81.13, -15.54)   33.29                74
 12/26/2018   04:49:32   (  81.44, 158.00) 12/26/2018   04:49:34  (  81.45, 157.87)    2.30                 2
 12/26/2018   05:40:13   ( -81.44, -34.64) 12/26/2018   05:39:01  ( -81.44, -34.57)    1.31                72
 12/28/2018   23:33:28   ( -81.38,  48.19) 12/28/2018   23:34:36  ( -81.16,  51.31)   58.30                68
 12/29/2018   00:23:46   (  81.44,-135.64) 12/29/2018   00:23:48  (  81.45,-135.67)    1.05                 2
 12/29/2018   01:14:27   ( -81.44,  31.75) 12/29/2018   01:13:15  ( -81.44,  31.92)    2.89                72
 12/31/2018   19:07:46   ( -81.36, 113.38) 12/31/2018   19:08:48  ( -81.22, 118.83)   93.13                62
 12/31/2018   19:58:01   (  81.44, -69.30) 12/31/2018   19:58:03  (  81.44, -69.28)    0.78                 2
 12/31/2018   20:48:41   ( -81.44,  98.51) 12/31/2018   20:47:30  ( -81.44,  98.33)    3.00                71
 01/03/2019   14:42:01   ( -81.36, 179.72) 01/03/2019   14:43:02  ( -81.24,-174.43)   99.22                61
 01/03/2019   15:32:16   (  81.44,  -2.98) 01/03/2019   15:32:18  (  81.44,  -2.94)    0.60                 2