Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 2.  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)
 04/03/2020   22:11:34   ( -68.88,  26.20) 04/03/2020   22:12:43  ( -68.89,  26.19)    1.18                69
 04/03/2020   23:02:17   (  68.75,-166.31) 04/03/2020   23:02:10  (  68.78,-166.31)    3.49                 7
 04/03/2020   23:52:55   ( -68.45,   1.40) 04/03/2020   23:51:43  ( -68.50,   0.99)   18.14                72
 04/06/2020   14:27:59   ( -68.92, 142.05) 04/06/2020   14:29:10  ( -68.92, 142.11)    2.53                71
 04/06/2020   15:18:41   (  68.73, -50.39) 04/06/2020   15:18:38  (  68.75, -50.46)    3.15                 3
 04/06/2020   16:09:22   ( -68.60, 117.12) 04/06/2020   16:08:09  ( -68.59, 116.98)    5.67                73
 04/09/2020   06:44:25   ( -69.01,-102.18) 04/09/2020   06:45:36  ( -69.00,-101.90)   11.25                71
 04/09/2020   07:35:06   (  68.78,  65.46) 04/09/2020   07:35:05  (  68.77,  65.46)    0.60                 1
 04/09/2020   08:25:47   ( -68.64,-127.03) 04/09/2020   08:24:35  ( -68.67,-127.03)    3.45                72
 04/11/2020   23:00:50   ( -69.11,  13.60) 04/11/2020   23:02:02  ( -69.02,  14.02)   19.57                72
 04/11/2020   23:51:29   (  68.76,-178.62) 04/11/2020   23:51:31  (  68.79,-178.63)    2.83                 2
 04/12/2020   00:42:11   ( -68.68, -11.19) 04/12/2020   00:41:01  ( -68.69, -11.12)    2.94                70
 04/14/2020   15:17:16   ( -69.21, 129.37) 04/14/2020   15:18:28  ( -69.09, 130.00)   28.18                72
 04/14/2020   16:07:54   (  68.81, -62.77) 04/14/2020   16:07:58  (  68.81, -62.72)    2.15                 4
 04/14/2020   16:58:35   ( -68.67, 104.73) 04/14/2020   16:57:29  ( -68.65, 104.72)    1.97                66