Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 20.  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)
 03/21/2020   12:49:33   ( -68.84, 166.73) 03/21/2020   12:50:27  ( -68.83, 166.68)    2.15                54
 03/21/2020   13:40:16   (  68.72, -25.79) 03/21/2020   13:39:54  (  68.72, -25.82)    1.05                22
 03/21/2020   14:30:45   ( -67.93, 142.55) 03/21/2020   14:29:36  ( -67.95, 140.88)   69.52                69
 03/24/2020   05:05:58   ( -68.88, -77.42) 03/24/2020   05:06:54  ( -68.88, -77.37)    2.03                56
 03/24/2020   05:56:41   (  68.76,  90.06) 03/24/2020   05:56:21  (  68.76,  90.13)    2.90                20
 03/24/2020   06:47:11   ( -68.02,-101.66) 03/24/2020   06:46:01  ( -68.11,-103.04)   58.07                70
 03/26/2020   21:22:22   ( -68.87,  38.51) 03/26/2020   21:23:22  ( -68.88,  38.51)    1.21                60
 03/26/2020   22:13:05   (  68.75,-154.02) 03/26/2020   22:12:49  (  68.75,-154.00)    1.23                16
 03/26/2020   23:03:38   ( -68.17,  14.06) 03/26/2020   23:02:27  ( -68.21,  12.97)   45.09                71
 03/29/2020   13:38:46   ( -68.85, 154.43) 03/29/2020   13:39:50  ( -68.86, 154.38)    2.05                64
 03/29/2020   14:29:29   (  68.74, -38.10) 03/29/2020   14:29:17  (  68.74, -38.13)    1.05                12
 03/29/2020   15:20:04   ( -68.26, 129.84) 03/29/2020   15:18:53  ( -68.31, 128.98)   35.71                71
 04/01/2020   05:55:10   ( -68.90, -89.73) 04/01/2020   05:56:16  ( -68.91, -89.68)    2.29                66
 04/01/2020   06:45:53   (  68.78,  77.74) 04/01/2020   06:45:43  (  68.78,  77.81)    2.88                10
 04/01/2020   07:36:30   ( -68.42,-114.46) 04/01/2020   07:35:17  ( -68.46,-114.95)   20.81                73