Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 9 25.  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)
 09/26/2019   15:23:05   ( -68.86, 128.24) 09/26/2019   15:24:15  ( -68.88, 128.22)    1.79                70
 09/26/2019   16:13:49   (  68.74, -64.28) 09/26/2019   16:13:43  (  68.72, -64.33)    3.03                 6
 09/26/2019   17:04:27   ( -68.48, 103.38) 09/26/2019   17:03:14  ( -68.55, 103.09)   13.86                73
 09/29/2019   07:39:31   ( -68.89,-115.91) 09/29/2019   07:40:43  ( -68.88,-115.90)    1.82                72
 09/29/2019   08:30:15   (  68.78,  51.56) 09/29/2019   08:30:10  (  68.77,  51.61)    2.35                 5
 09/29/2019   09:20:54   ( -68.57,-140.85) 09/29/2019   09:19:41  ( -68.61,-140.96)    6.35                73
 10/01/2019   23:55:59   ( -68.98,  -0.14) 10/01/2019   23:57:11  ( -68.93,   0.05)    9.38                72
 10/02/2019   00:46:41   (  68.76, 167.46) 10/02/2019   00:46:39  (  68.76, 167.48)    0.80                 2
 10/02/2019   01:37:22   ( -68.65, -25.07) 10/02/2019   01:36:09  ( -68.66, -25.02)    2.36                73
 10/04/2019   16:12:27   ( -69.07, 115.62) 10/04/2019   16:13:39  ( -68.98, 115.98)   17.46                72
 10/04/2019   17:03:07   (  68.75, -76.63) 10/04/2019   17:03:08  (  68.75, -76.66)    1.13                 1
 10/04/2019   17:53:48   ( -68.64,  90.84) 10/04/2019   17:52:38  ( -68.65,  90.85)    1.79                70
 10/07/2019   08:28:55   ( -69.16,-128.61) 10/07/2019   08:30:06  ( -69.08,-128.01)   25.28                71
 10/07/2019   09:19:34   (  68.79,  39.20) 10/07/2019   09:19:36  (  68.79,  39.27)    2.65                 2
 10/07/2019   10:10:14   ( -68.62,-153.25) 10/07/2019   10:09:07  ( -68.64,-153.29)    2.78                67