Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 27.  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)
 07/29/2019   17:21:25   ( -68.78,  98.83) 07/29/2019   17:21:55  ( -68.78,  98.76)    2.81                30
 07/29/2019   18:12:09   (  68.69, -93.75) 07/29/2019   18:11:22  (  68.66, -93.74)    3.22                47
 08/01/2019   09:37:52   ( -68.79,-145.30) 08/01/2019   09:38:23  ( -68.82,-145.31)    3.14                31
 08/01/2019   10:28:36   (  68.71,  22.12) 08/01/2019   10:27:50  (  68.70,  22.19)    2.87                46
 08/04/2019   01:54:18   ( -68.80, -29.44) 08/04/2019   01:54:51  ( -68.80, -29.46)    1.37                33
 08/04/2019   02:45:01   (  68.67, 138.06) 08/04/2019   02:44:18  (  68.68, 138.04)    1.45                43
 08/06/2019   18:10:45   ( -68.82,  86.43) 08/06/2019   18:11:19  ( -68.82,  86.45)    1.13                34
 08/06/2019   19:01:28   (  68.68,-106.08) 08/06/2019   19:00:46  (  68.70,-106.05)    2.65                42
 08/09/2019   10:27:11   ( -68.79,-157.64) 08/09/2019   10:27:48  ( -68.79,-157.71)    2.71                37
 08/09/2019   11:17:55   (  68.70,   9.78) 08/09/2019   11:17:15  (  68.67,   9.79)    3.45                40