Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 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)
 10/12/2019   17:01:50   ( -69.36, 102.89) 10/12/2019   17:03:00  ( -69.23, 103.94)   43.76                70
 10/12/2019   17:52:25   (  68.78, -89.00) 10/12/2019   17:52:33  (  68.80, -88.98)    2.02                 8
 10/12/2019   18:43:06   ( -68.66,  78.48) 10/12/2019   18:42:03  ( -68.69,  78.52)    2.96                63
 10/15/2019   09:18:17   ( -69.41,-141.29) 10/15/2019   09:19:27  ( -69.32,-140.07)   48.62                70
 10/15/2019   10:08:51   (  68.78,  26.90) 10/15/2019   10:09:02  (  68.77,  26.87)    1.21                11
 10/15/2019   10:59:32   ( -68.65,-165.62) 10/15/2019   10:58:32  ( -68.66,-165.63)    1.38                60
 10/18/2019   01:34:44   ( -69.50, -25.54) 10/18/2019   01:35:53  ( -69.41, -24.08)   57.84                69
 10/18/2019   02:25:16   (  68.77, 142.79) 10/18/2019   02:25:29  (  68.80, 142.78)    2.65                13
 10/18/2019   03:15:57   ( -68.64, -49.72) 10/18/2019   03:15:00  ( -68.64, -49.79)    2.79                57
 10/20/2019   17:51:12   ( -69.60,  90.21) 10/20/2019   17:52:20  ( -69.49,  91.91)   67.01                68
 10/20/2019   18:41:42   (  68.77,-101.32) 10/20/2019   18:41:58  (  68.76,-101.39)    3.04                16
 10/20/2019   19:32:24   ( -68.69,  66.11) 10/20/2019   19:31:28  ( -68.66,  66.12)    3.08                56
 10/23/2019   10:07:39   ( -69.65,-153.97) 10/23/2019   10:08:47  ( -69.56,-152.12)   72.28                68
 10/23/2019   10:58:08   (  68.77,  14.57) 10/23/2019   10:58:26  (  68.78,  14.51)    2.60                18
 10/23/2019   11:48:50   ( -68.68,-177.99) 10/23/2019   11:47:56  ( -68.68,-177.98)    0.64                54