Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 18.  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)
 03/18/2020   20:33:10   ( -68.86,  50.80) 03/18/2020   20:34:00  ( -68.84,  50.79)    2.50                50
 03/18/2020   21:23:53   (  68.73,-141.72) 03/18/2020   21:23:27  (  68.72,-141.70)    1.60                26
 03/18/2020   22:14:19   ( -67.78,  26.82) 03/18/2020   22:13:11  ( -67.84,  24.87)   82.21                68
 03/21/2020   12:49:33   ( -68.84, 166.74) 03/21/2020   12:50:27  ( -68.83, 166.68)    2.41                54
 03/21/2020   13:40:16   (  68.71, -25.79) 03/21/2020   13:39:54  (  68.71, -25.83)    1.59                22
 03/21/2020   14:30:45   ( -67.92, 142.56) 03/21/2020   14:29:36  ( -67.95, 140.88)   70.00                69
 03/24/2020   05:05:58   ( -68.87, -77.40) 03/24/2020   05:06:54  ( -68.88, -77.38)    1.81                56
 03/24/2020   05:56:41   (  68.75,  90.07) 03/24/2020   05:56:21  (  68.76,  90.12)    2.06                20
 03/24/2020   06:47:11   ( -68.00,-101.65) 03/24/2020   06:46:02  ( -68.05,-103.11)   61.13                69
 03/26/2020   21:22:22   ( -68.84,  38.53) 03/26/2020   21:23:22  ( -68.87,  38.49)    2.86                60
 03/26/2020   22:13:05   (  68.73,-154.00) 03/26/2020   22:12:49  (  68.74,-154.02)    1.66                16
 03/26/2020   23:03:38   ( -68.14,  14.08) 03/26/2020   23:02:27  ( -68.20,  12.96)   46.86                71
 03/29/2020   13:38:47   ( -68.88, 154.39) 03/29/2020   13:39:49  ( -68.90, 154.43)    3.30                62
 03/29/2020   14:29:30   (  68.76, -38.14) 03/29/2020   14:29:16  (  68.78, -38.08)    2.69                14
 03/29/2020   15:20:04   ( -68.23, 129.87) 03/29/2020   15:18:53  ( -68.30, 128.96)   38.38                71