Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 9 23.  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)
 09/23/2019   23:06:39   ( -68.86,  12.35) 09/23/2019   23:07:46  ( -68.89,  12.36)    2.82                67
 09/23/2019   23:57:23   (  68.74, 179.83) 09/23/2019   23:57:14  (  68.73, 179.81)    1.14                 9
 09/24/2019   00:47:59   ( -68.38, -12.37) 09/24/2019   00:46:47  ( -68.45, -12.90)   23.11                72
 09/26/2019   15:23:05   ( -68.90, 128.19) 09/26/2019   15:24:14  ( -68.90, 128.25)    2.46                69
 09/26/2019   16:13:48   (  68.72, -64.27) 09/26/2019   16:13:42  (  68.74, -64.31)    2.16                 6
 09/26/2019   17:04:27   ( -68.52, 103.33) 09/26/2019   17:03:13  ( -68.57, 103.12)   10.24                74
 09/29/2019   07:39:32   ( -68.94,-115.97) 09/29/2019   07:40:43  ( -68.91,-115.86)    5.56                71
 09/29/2019   08:30:15   (  68.77,  51.57) 09/29/2019   08:30:11  (  68.74,  51.57)    3.24                 4
 09/29/2019   09:20:55   ( -68.61,-140.90) 09/29/2019   09:19:41  ( -68.63,-140.93)    2.74                74
 10/01/2019   23:56:00   ( -69.03,  -0.21) 10/01/2019   23:57:11  ( -68.96,   0.08)   13.89                71
 10/02/2019   00:46:41   (  68.76, 167.47) 10/02/2019   00:46:40  (  68.74, 167.45)    2.61                 1
 10/02/2019   01:37:22   ( -68.65, -25.07) 10/02/2019   01:36:10  ( -68.63, -25.05)    1.76                72
 10/04/2019   16:12:27   ( -69.07, 115.62) 10/04/2019   16:13:39  ( -69.02, 116.03)   17.29                72
 10/04/2019   17:03:07   (  68.75, -76.64) 10/04/2019   17:03:09  (  68.73, -76.68)    3.05                 2
 10/04/2019   17:53:48   ( -68.64,  90.84) 10/04/2019   17:52:39  ( -68.63,  90.83)    0.72                69