Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 19.  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)
 07/21/2019   15:41:39   (  69.71, -57.46) 07/21/2019   15:42:46  (  69.60, -55.43)   79.30                67
 07/21/2019   16:32:05   ( -68.76, 111.19) 07/21/2019   16:32:29  ( -68.78, 111.13)    2.91                24
 07/21/2019   17:22:49   (  68.69, -81.40) 07/21/2019   17:21:56  (  68.66, -81.37)    2.69                53
 07/24/2019   07:58:07   (  69.76,  58.34) 07/24/2019   07:59:14  (  69.67,  60.53)   85.19                67
 07/24/2019   08:48:32   ( -68.77,-132.93) 07/24/2019   08:48:58  ( -68.79,-132.98)    3.22                26
 07/24/2019   09:39:16   (  68.69,  34.48) 07/24/2019   09:38:25  (  68.67,  34.52)    2.42                51
 07/27/2019   00:14:36   (  69.87, 174.07) 07/27/2019   00:15:42  (  69.73, 176.50)   94.83                66
 07/27/2019   01:05:00   ( -68.82, -17.12) 07/27/2019   01:05:27  ( -68.80, -17.09)    2.78                27
 07/27/2019   01:55:43   (  68.69, 150.36) 07/27/2019   01:54:54  (  68.68, 150.41)    2.26                49
 07/29/2019   17:21:26   ( -68.83,  98.76) 07/29/2019   17:21:55  ( -68.81,  98.80)    2.33                29
 07/29/2019   18:12:09   (  68.70, -93.76) 07/29/2019   18:11:22  (  68.69, -93.70)    2.41                47
 08/01/2019   09:37:53   ( -68.83,-145.36) 08/01/2019   09:38:24  ( -68.83,-145.30)    2.48                31
 08/01/2019   10:28:35   (  68.65,  22.19) 08/01/2019   10:27:52  (  68.65,  22.12)    2.89                43