Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 6 26.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/27/2019   13:13:29   (  69.17, -19.66) 06/27/2019   13:14:41  (  69.05, -19.08)   26.22                72
 06/27/2019   14:04:05   ( -68.76, 148.22) 06/27/2019   14:04:14  ( -68.77, 148.20)    1.82                 9
 06/27/2019   14:54:49   (  68.68, -44.36) 06/27/2019   14:53:41  (  68.66, -44.29)    3.16                68
 06/30/2019   05:29:57   (  69.22,  96.15) 06/30/2019   05:31:08  (  69.09,  96.85)   31.35                71
 06/30/2019   06:20:32   ( -68.75, -95.89) 06/30/2019   06:20:42  ( -68.76, -95.93)    1.89                10
 06/30/2019   07:11:15   (  68.62,  71.60) 06/30/2019   07:10:09  (  68.64,  71.57)    2.45                66
 07/02/2019   21:46:23   (  69.22,-147.96) 07/02/2019   21:47:34  (  69.12,-147.22)   31.48                71
 07/02/2019   22:36:58   ( -68.75,  20.00) 07/02/2019   22:37:09  ( -68.75,  19.93)    2.85                11
 07/02/2019   23:27:41   (  68.63,-172.52) 07/02/2019   23:26:36  (  68.63,-172.57)    2.01                65
 07/05/2019   14:02:51   (  69.28, -32.16) 07/05/2019   14:04:01  (  69.16, -31.29)   36.83                70
 07/05/2019   14:53:26   ( -68.80, 135.82) 07/05/2019   14:53:36  ( -68.78, 135.86)    2.90                10
 07/05/2019   15:44:08   (  68.63, -56.64) 07/05/2019   15:43:03  (  68.66, -56.64)    3.41                65
 07/08/2019   06:19:18   (  69.28,  83.72) 07/08/2019   06:20:28  (  69.19,  84.64)   37.58                70
 07/08/2019   07:09:52   ( -68.75,-108.23) 07/08/2019   07:10:04  ( -68.77,-108.27)    2.61                12
 07/08/2019   08:00:35   (  68.63,  59.24) 07/08/2019   07:59:31  (  68.64,  59.21)    1.14                64