Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 4.  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)
 08/06/2019   18:10:45   ( -68.81,  86.44) 08/06/2019   18:11:19  ( -68.84,  86.48)    3.20                34
 08/06/2019   19:01:28   (  68.67,-106.06) 08/06/2019   19:00:47  (  68.68,-106.08)    1.30                41
 08/09/2019   10:27:12   ( -68.82,-157.69) 08/09/2019   10:27:48  ( -68.82,-157.67)    1.10                36
 08/09/2019   11:17:55   (  68.68,   9.82) 08/09/2019   11:17:16  (  68.65,   9.77)    3.03                39
 08/12/2019   02:43:38   ( -68.78, -41.75) 08/12/2019   02:44:17  ( -68.80, -41.82)    3.24                39
 08/12/2019   03:34:22   (  68.69, 125.69) 08/12/2019   03:33:44  (  68.68, 125.69)    0.13                38
 08/14/2019   19:00:05   ( -68.84,  74.05) 08/14/2019   19:00:44  ( -68.83,  74.10)    2.93                39
 08/14/2019   19:50:48   (  68.70,-118.44) 08/14/2019   19:50:11  (  68.71,-118.40)    2.53                37
 08/17/2019   11:16:31   ( -68.80,-170.00) 08/17/2019   11:17:13  ( -68.80,-170.06)    2.26                42
 08/17/2019   12:07:15   (  68.70,  -2.56) 08/17/2019   12:06:40  (  68.68,  -2.56)    2.72                35