Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 10 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)
 10/12/2019   17:01:49   ( -69.34, 102.91) 10/12/2019   17:02:59  ( -69.25, 103.96)   42.47                70
 10/12/2019   17:52:24   (  68.76, -88.97) 10/12/2019   17:52:33  (  68.76, -89.02)    1.96                 9
 10/12/2019   18:43:05   ( -68.64,  78.50) 10/12/2019   18:42:03  ( -68.65,  78.47)    1.36                62
 10/15/2019   09:18:17   ( -69.44,-141.33) 10/15/2019   09:19:27  ( -69.29,-140.11)   50.71                70
 10/15/2019   10:08:51   (  68.81,  26.85) 10/15/2019   10:09:01  (  68.79,  26.90)    2.55                10
 10/15/2019   10:59:32   ( -68.69,-165.67) 10/15/2019   10:58:31  ( -68.69,-165.61)    2.48                61
 10/18/2019   01:34:44   ( -69.48, -25.51) 10/18/2019   01:35:54  ( -69.38, -24.12)   55.55                70
 10/18/2019   02:25:17   (  68.81, 142.74) 10/18/2019   02:25:29  (  68.82, 142.81)    3.00                12
 10/18/2019   03:15:58   ( -68.68, -49.77) 10/18/2019   03:15:00  ( -68.66, -49.76)    2.04                58
 10/20/2019   17:51:12   ( -69.58,  90.24) 10/20/2019   17:52:21  ( -69.46,  91.86)   64.85                69
 10/20/2019   18:41:43   (  68.81,-101.37) 10/20/2019   18:41:58  (  68.79,-101.36)    2.33                15
 10/20/2019   19:32:24   ( -68.67,  66.13) 10/20/2019   19:31:28  ( -68.69,  66.15)    1.71                56
 10/23/2019   10:07:39   ( -69.68,-154.02) 10/23/2019   10:08:47  ( -69.53,-152.16)   74.14                68
 10/23/2019   10:58:08   (  68.81,  14.52) 10/23/2019   10:58:25  (  68.80,  14.54)    0.98                17
 10/23/2019   11:48:49   ( -68.67,-177.97) 10/23/2019   11:47:56  ( -68.65,-178.01)    2.57                53