Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 7.  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)
 04/09/2020   06:44:24   ( -69.01,-102.17) 04/09/2020   06:45:36  ( -68.95,-101.96)   11.08                72
 04/09/2020   07:35:05   (  68.77,  65.48) 04/09/2020   07:35:04  (  68.78,  65.48)    1.79                 1
 04/09/2020   08:25:46   ( -68.63,-127.03) 04/09/2020   08:24:35  ( -68.62,-127.09)    3.10                71
 04/11/2020   23:00:50   ( -69.11,  13.60) 04/11/2020   23:02:02  ( -69.02,  14.03)   19.79                72
 04/11/2020   23:51:30   (  68.81,-178.68) 04/11/2020   23:51:31  (  68.80,-178.61)    3.28                 1
 04/12/2020   00:42:10   ( -68.63, -11.11) 04/12/2020   00:41:02  ( -68.64, -11.18)    2.82                68
 04/14/2020   15:17:16   ( -69.21, 129.36) 04/14/2020   15:18:28  ( -69.09, 130.00)   28.90                72
 04/14/2020   16:07:54   (  68.81, -62.77) 04/14/2020   16:07:58  (  68.81, -62.71)    2.36                 4
 04/14/2020   16:58:35   ( -68.68, 104.73) 04/14/2020   16:57:29  ( -68.65, 104.73)    3.03                66
 04/17/2020   07:33:42   ( -69.32,-114.88) 04/17/2020   07:34:53  ( -69.21,-113.95)   38.40                71
 04/17/2020   08:24:18   (  68.80,  53.14) 04/17/2020   08:24:25  (  68.81,  53.19)    2.25                 7
 04/17/2020   09:14:59   ( -68.67,-139.36) 04/17/2020   09:13:56  ( -68.66,-139.37)    1.72                63
 04/19/2020   23:50:07   ( -69.42,   0.88) 04/19/2020   23:51:17  ( -69.32,   2.09)   48.68                70
 04/20/2020   00:40:41   (  68.80, 169.05) 04/20/2020   00:40:51  (  68.82, 169.08)    2.28                10
 04/20/2020   01:31:22   ( -68.67, -23.45) 04/20/2020   01:30:22  ( -68.66, -23.48)    1.35                60