Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 16.  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   ( -68.87,  50.78) 03/18/2020   20:33:59  ( -68.88,  50.85)    2.73                49
 03/18/2020   21:23:52   (  68.70,-141.67) 03/18/2020   21:23:27  (  68.71,-141.72)    2.38                25
 03/18/2020   22:14:19   ( -67.80,  26.80) 03/18/2020   22:13:11  ( -67.82,  24.85)   81.92                68
 03/21/2020   12:49:34   ( -68.85, 166.72) 03/21/2020   12:50:27  ( -68.88, 166.73)    3.00                53
 03/21/2020   13:40:17   (  68.73, -25.81) 03/21/2020   13:39:54  (  68.76, -25.77)    3.28                23
 03/21/2020   14:30:45   ( -67.88, 142.60) 03/21/2020   14:29:37  ( -67.93, 140.87)   72.82                68
 03/24/2020   05:05:59   ( -68.88, -77.42) 03/24/2020   05:06:55  ( -68.87, -77.39)    1.74                56
 03/24/2020   05:56:42   (  68.76,  90.05) 03/24/2020   05:56:22  (  68.75,  90.10)    2.77                20
 03/24/2020   06:47:12   ( -68.02,-101.67) 03/24/2020   06:46:02  ( -68.10,-103.05)   58.32                70
 03/26/2020   21:22:22   ( -68.86,  38.51) 03/26/2020   21:23:22  ( -68.86,  38.49)    0.93                60
 03/26/2020   22:13:05   (  68.74,-154.02) 03/26/2020   22:12:49  (  68.74,-154.02)    0.69                16
 03/26/2020   23:03:38   ( -68.16,  14.06) 03/26/2020   23:02:27  ( -68.20,  12.96)   45.91                71
 03/29/2020   13:38:47   ( -68.89, 154.37) 03/29/2020   13:39:49  ( -68.91, 154.44)    3.17                62
 03/29/2020   14:29:29   (  68.73, -38.09) 03/29/2020   14:29:17  (  68.72, -38.15)    2.38                12
 03/29/2020   15:20:04   ( -68.25, 129.85) 03/29/2020   15:18:53  ( -68.30, 128.96)   37.12                71