Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 11.  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   ( -68.85, 179.01) 03/13/2020   12:01:04  ( -68.84, 179.03)    1.33                43
 03/13/2020   12:51:04   (  68.72, -13.51) 03/13/2020   12:50:31  (  68.73, -13.47)    1.82                33
 03/16/2020   04:16:45   ( -68.82, -65.05) 03/16/2020   04:17:32  ( -68.84, -65.08)    2.38                47
 03/16/2020   05:07:28   (  68.70, 102.42) 03/16/2020   05:06:59  (  68.72, 102.42)    2.35                29
 03/16/2020   05:57:52   ( -67.64, -88.91) 03/16/2020   05:56:45  ( -67.73, -91.13)   94.59                67
 03/18/2020   20:33:10   ( -68.85,  50.81) 03/18/2020   20:34:00  ( -68.84,  50.80)    1.69                50
 03/18/2020   21:23:53   (  68.73,-141.72) 03/18/2020   21:23:27  (  68.71,-141.71)    2.43                26
 03/18/2020   22:14:19   ( -67.78,  26.83) 03/18/2020   22:13:11  ( -67.84,  24.88)   82.35                68
 03/21/2020   12:49:33   ( -68.83, 166.75) 03/21/2020   12:50:27  ( -68.83, 166.68)    2.80                54
 03/21/2020   13:40:16   (  68.71, -25.79) 03/21/2020   13:39:54  (  68.70, -25.84)    2.83                22
 03/21/2020   14:30:45   ( -67.91, 142.56) 03/21/2020   14:29:36  ( -67.94, 140.88)   70.36                69
 03/24/2020   05:05:58   ( -68.86, -77.39) 03/24/2020   05:06:54  ( -68.86, -77.39)    0.27                56
 03/24/2020   05:56:41   (  68.75,  90.07) 03/24/2020   05:56:21  (  68.73,  90.09)    2.17                20
 03/24/2020   06:47:11   ( -68.00,-101.64) 03/24/2020   06:46:01  ( -68.09,-103.06)   59.65                70