Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 9.  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)
 08/10/2020   13:50:29   (  69.06, -28.42) 08/10/2020   13:51:41  (  69.03, -28.33)    4.55                72
 08/10/2020   14:41:09   ( -68.87, 139.16) 08/10/2020   14:41:12  ( -68.86, 139.09)    2.98                 3
 08/10/2020   15:31:52   (  68.73, -53.35) 08/10/2020   15:30:39  (  68.76, -53.40)    3.34                73
 08/13/2020   06:06:55   (  69.27,  87.20) 08/13/2020   06:08:06  (  69.18,  87.75)   23.86                71
 08/13/2020   06:57:32   ( -68.93,-105.00) 08/13/2020   06:57:39  ( -68.91,-104.97)    2.44                 7
 08/13/2020   07:48:15   (  68.79,  62.49) 08/13/2020   07:47:06  (  68.80,  62.53)    2.02                69
 08/15/2020   22:23:21   (  69.43,-157.12) 08/15/2020   22:24:32  (  69.33,-156.18)   38.64                71
 08/15/2020   23:13:55   ( -68.93,  10.91) 08/15/2020   23:14:07  ( -68.95,  10.96)    2.77                12
 08/16/2020   00:04:38   (  68.79, 178.40) 08/16/2020   00:03:35  (  68.78, 178.39)    1.34                63
 08/18/2020   14:39:48   (  69.65, -41.52) 08/18/2020   14:40:57  (  69.53, -40.04)   59.19                69
 08/18/2020   15:30:18   ( -68.93, 126.81) 08/18/2020   15:30:36  ( -68.92, 126.81)    0.98                18
 08/18/2020   16:21:01   (  68.79, -65.69) 08/18/2020   16:20:03  (  68.81, -65.69)    1.79                58
 08/21/2020   06:56:14   (  69.81,  74.15) 08/21/2020   06:57:22  (  69.72,  76.10)   75.91                68
 08/21/2020   07:46:41   ( -68.94,-117.28) 08/21/2020   07:47:04  ( -68.95,-117.27)    1.50                23
 08/21/2020   08:37:24   (  68.80,  50.22) 08/21/2020   08:36:32  (  68.78,  50.15)    3.52                52