Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 7.  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)
 03/08/2020   03:27:33   ( -68.84, -52.79) 03/08/2020   03:28:09  ( -68.83, -52.75)    1.60                36
 03/08/2020   04:18:16   (  68.71, 114.70) 03/08/2020   04:17:36  (  68.72, 114.75)    2.60                40
 03/10/2020   19:43:57   ( -68.86,  63.08) 03/10/2020   19:44:36  ( -68.85,  63.15)    3.31                39
 03/10/2020   20:34:39   (  68.68,-129.36) 03/10/2020   20:34:04  (  68.67,-129.42)    2.60                35
 03/13/2020   12:00:21   ( -68.84, 179.03) 03/13/2020   12:01:04  ( -68.85, 179.05)    2.21                43
 03/13/2020   12:51:04   (  68.71, -13.50) 03/13/2020   12:50:31  (  68.73, -13.46)    2.64                33
 03/16/2020   04:16:46   ( -68.86, -65.11) 03/16/2020   04:17:32  ( -68.86, -65.06)    1.80                46
 03/16/2020   05:07:29   (  68.74, 102.37) 03/16/2020   05:06:59  (  68.73, 102.43)    2.82                30
 03/16/2020   05:57:53   ( -67.68, -88.95) 03/16/2020   05:56:46  ( -67.69, -91.18)   94.17                67
 03/18/2020   20:33:10   ( -68.83,  50.83) 03/18/2020   20:34:00  ( -68.85,  50.82)    2.27                50
 03/18/2020   21:23:53   (  68.72,-141.70) 03/18/2020   21:23:27  (  68.73,-141.69)    0.67                26
 03/18/2020   22:14:19   ( -67.76,  26.85) 03/18/2020   22:13:12  ( -67.80,  24.83)   85.09                67