Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 1.  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)
 08/04/2019   01:54:18   ( -68.79, -29.42) 08/04/2019   01:54:51  ( -68.81, -29.43)    2.03                33
 08/04/2019   02:45:01   (  68.65, 138.08) 08/04/2019   02:44:19  (  68.65, 138.01)    2.77                42
 08/06/2019   18:10:45   ( -68.81,  86.44) 08/06/2019   18:11:20  ( -68.80,  86.43)    1.54                35
 08/06/2019   19:01:28   (  68.67,-106.06) 08/06/2019   19:00:47  (  68.69,-106.07)    2.16                41
 08/09/2019   10:27:12   ( -68.83,-157.70) 08/09/2019   10:27:48  ( -68.84,-157.65)    2.15                36
 08/09/2019   11:17:55   (  68.68,   9.81) 08/09/2019   11:17:16  (  68.67,   9.79)    2.02                39
 08/12/2019   02:43:37   ( -68.79, -41.76) 08/12/2019   02:44:16  ( -68.82, -41.79)    2.72                39
 08/12/2019   03:34:21   (  68.70, 125.67) 08/12/2019   03:33:43  (  68.70, 125.71)    1.69                38
 08/14/2019   19:00:04   ( -68.81,  74.10) 08/14/2019   19:00:45  ( -68.79,  74.06)    2.80                41
 08/14/2019   19:50:47   (  68.67,-118.40) 08/14/2019   19:50:12  (  68.68,-118.44)    1.88                35