Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 23.  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)
 03/24/2020   05:05:58   ( -68.88, -77.42) 03/24/2020   05:06:54  ( -68.87, -77.38)    1.60                56
 03/24/2020   05:56:41   (  68.75,  90.06) 03/24/2020   05:56:21  (  68.76,  90.12)    2.31                20
 03/24/2020   06:47:11   ( -68.02,-101.66) 03/24/2020   06:46:01  ( -68.10,-103.05)   58.42                70
 03/26/2020   21:22:22   ( -68.86,  38.51) 03/26/2020   21:23:22  ( -68.86,  38.49)    0.87                60
 03/26/2020   22:13:05   (  68.74,-154.01) 03/26/2020   22:12:49  (  68.74,-154.01)    0.67                16
 03/26/2020   23:03:38   ( -68.16,  14.06) 03/26/2020   23:02:27  ( -68.20,  12.96)   45.95                71
 03/29/2020   13:38:47   ( -68.90, 154.37) 03/29/2020   13:39:49  ( -68.90, 154.43)    2.64                62
 03/29/2020   14:29:29   (  68.72, -38.08) 03/29/2020   14:29:17  (  68.73, -38.14)    2.46                12
 03/29/2020   15:20:04   ( -68.25, 129.85) 03/29/2020   15:18:53  ( -68.29, 128.96)   37.06                71
 04/01/2020   05:55:10   ( -68.88, -89.71) 04/01/2020   05:56:16  ( -68.88, -89.70)    0.51                66
 04/01/2020   06:45:53   (  68.76,  77.77) 04/01/2020   06:45:43  (  68.76,  77.79)    0.82                10
 04/01/2020   07:36:30   ( -68.39,-114.43) 04/01/2020   07:35:17  ( -68.44,-114.97)   22.76                73
 04/03/2020   22:11:34   ( -68.87,  26.22) 04/03/2020   22:12:44  ( -68.86,  26.16)    2.35                70
 04/03/2020   23:02:17   (  68.75,-166.31) 04/03/2020   23:02:11  (  68.74,-166.35)    2.04                 6
 04/03/2020   23:52:56   ( -68.49,   1.35) 04/03/2020   23:51:43  ( -68.53,   1.03)   14.17                73