Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 19.  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)
 08/21/2020   06:56:15   (  69.90,  74.01) 08/21/2020   06:57:22  (  69.81,  76.22)   85.24                67
 08/21/2020   07:46:40   ( -68.93,-117.27) 08/21/2020   07:47:06  ( -68.92,-117.32)    2.57                26
 08/21/2020   08:37:24   (  68.84,  50.17) 08/21/2020   08:36:33  (  68.81,  50.19)    2.62                51
 08/24/2020   00:03:03   ( -68.94,  -1.37) 08/24/2020   00:03:35  ( -68.93,  -1.43)    2.85                32
 08/24/2020   00:53:47   (  68.84, 166.08) 08/24/2020   00:53:02  (  68.82, 166.08)    2.39                45
 08/26/2020   16:19:27   ( -69.00, 114.46) 08/26/2020   16:20:03  ( -68.99, 114.52)    2.84                36
 08/26/2020   17:10:10   (  68.85, -78.02) 08/26/2020   17:09:31  (  68.82, -78.04)    3.16                39
 08/29/2020   08:35:50   ( -69.01,-129.64) 08/29/2020   08:36:32  ( -68.99,-129.60)    2.96                42
 08/29/2020   09:26:33   (  68.86,  37.88) 08/29/2020   09:25:59  (  68.87,  37.90)    1.98                34
 09/01/2020   00:52:11   ( -68.97, -13.66) 09/01/2020   00:53:00  ( -68.98, -13.73)    2.97                49
 09/01/2020   01:42:55   (  68.86, 153.79) 09/01/2020   01:42:27  (  68.86, 153.77)    0.57                28