Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 12.  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)
 03/13/2020   12:00:21   ( -68.81, 179.06) 03/13/2020   12:01:05  ( -68.82, 179.01)    2.51                44
 03/13/2020   12:51:04   (  68.68, -13.46) 03/13/2020   12:50:32  (  68.71, -13.49)    3.17                32
 03/16/2020   04:16:45   ( -68.83, -65.07) 03/16/2020   04:17:32  ( -68.82, -65.10)    1.86                47
 03/16/2020   05:07:28   (  68.71, 102.41) 03/16/2020   05:06:59  (  68.70, 102.39)    1.04                29
 03/16/2020   05:57:52   ( -67.65, -88.92) 03/16/2020   05:56:45  ( -67.71, -91.16)   94.70                67
 03/18/2020   20:33:10   ( -68.86,  50.80) 03/18/2020   20:33:59  ( -68.87,  50.85)    2.27                49
 03/18/2020   21:23:53   (  68.74,-141.73) 03/18/2020   21:23:26  (  68.75,-141.66)    2.71                27
 03/18/2020   22:14:19   ( -67.78,  26.82) 03/18/2020   22:13:11  ( -67.82,  24.85)   82.84                68
 03/21/2020   12:49:34   ( -68.83, 166.74) 03/21/2020   12:50:27  ( -68.86, 166.72)    3.08                53
 03/21/2020   13:40:17   (  68.71, -25.79) 03/21/2020   13:39:54  (  68.73, -25.80)    1.73                23
 03/21/2020   14:30:45   ( -67.86, 142.63) 03/21/2020   14:29:37  ( -67.91, 140.85)   74.46                68
 03/24/2020   05:05:59   ( -68.86, -77.39) 03/24/2020   05:06:55  ( -68.84, -77.42)    2.59                56
 03/24/2020   05:56:41   (  68.74,  90.08) 03/24/2020   05:56:20  (  68.76,  90.13)    3.07                21
 03/24/2020   06:47:11   ( -68.00,-101.64) 03/24/2020   06:46:01  ( -68.06,-103.09)   60.75                70