Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 6.  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   ( -68.83,  86.41) 08/06/2019   18:11:19  ( -68.82,  86.46)    2.16                34
 08/06/2019   19:01:28   (  68.69,-106.08) 08/06/2019   19:00:47  (  68.66,-106.10)    2.64                41
 08/09/2019   10:27:11   ( -68.79,-157.65) 08/09/2019   10:27:48  ( -68.80,-157.69)    1.81                37
 08/09/2019   11:17:55   (  68.70,   9.79) 08/09/2019   11:17:15  (  68.70,   9.82)    1.59                40
 08/12/2019   02:43:38   ( -68.81, -41.79) 08/12/2019   02:44:16  ( -68.84, -41.77)    3.11                38
 08/12/2019   03:34:21   (  68.66, 125.72) 08/12/2019   03:33:44  (  68.67, 125.67)    2.34                37
 08/14/2019   19:00:05   ( -68.83,  74.07) 08/14/2019   19:00:45  ( -68.81,  74.08)    1.87                40
 08/14/2019   19:50:48   (  68.68,-118.41) 08/14/2019   19:50:12  (  68.70,-118.41)    2.48                36
 08/17/2019   11:16:31   ( -68.85,-170.07) 08/17/2019   11:17:12  ( -68.84,-170.00)    2.69                41
 08/17/2019   12:07:14   (  68.70,  -2.55) 08/17/2019   12:06:40  (  68.67,  -2.57)    3.02                34