Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 6 28.  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)
 06/30/2019   05:29:57   (  69.23,  96.14) 06/30/2019   05:31:07  (  69.14,  96.91)   32.57                70
 06/30/2019   06:20:32   ( -68.77, -95.91) 06/30/2019   06:20:42  ( -68.75, -95.94)    2.66                10
 06/30/2019   07:11:15   (  68.64,  71.58) 06/30/2019   07:10:09  (  68.64,  71.56)    0.76                66
 07/02/2019   21:46:24   (  69.23,-147.98) 07/02/2019   21:47:35  (  69.13,-147.21)   32.48                71
 07/02/2019   22:36:59   ( -68.76,  19.98) 07/02/2019   22:37:10  ( -68.75,  19.94)    2.22                11
 07/02/2019   23:27:42   (  68.64,-172.54) 07/02/2019   23:26:37  (  68.64,-172.56)    0.98                65
 07/05/2019   14:02:51   (  69.29, -32.17) 07/05/2019   14:04:01  (  69.19, -31.25)   37.86                70
 07/05/2019   14:53:25   ( -68.76, 135.87) 07/05/2019   14:53:37  ( -68.76, 135.83)    1.59                12
 07/05/2019   15:44:08   (  68.64, -56.65) 07/05/2019   15:43:04  (  68.64, -56.67)    0.81                64
 07/08/2019   06:19:19   (  69.34,  83.64) 07/08/2019   06:20:29  (  69.20,  84.65)   42.67                70
 07/08/2019   07:09:52   ( -68.76,-108.24) 07/08/2019   07:10:05  ( -68.78,-108.27)    2.36                13
 07/08/2019   08:00:35   (  68.64,  59.23) 07/08/2019   07:59:32  (  68.65,  59.23)    1.45                63
 07/10/2019   22:35:46   (  69.35,-160.48) 07/10/2019   22:36:56  (  69.28,-159.37)   44.13                70
 07/10/2019   23:26:20   ( -68.81,   7.58) 07/10/2019   23:26:33  ( -68.80,   7.64)    2.93                13
 07/11/2019   00:17:02   (  68.64, 175.11) 07/11/2019   00:16:00  (  68.67, 175.13)    3.44                62