Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 10 1.  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)
 10/03/2020   04:59:27   (  69.02, 104.56) 10/03/2020   05:00:09  (  69.02, 104.52)    1.68                42
 10/03/2020   05:50:08   ( -68.93, -87.99) 10/03/2020   05:49:39  ( -68.91, -87.99)    1.69                29
 10/05/2020   21:15:50   (  69.05,-139.57) 10/05/2020   21:16:37  (  69.07,-139.54)    2.65                47
 10/05/2020   22:06:30   ( -68.90,  27.96) 10/05/2020   22:06:08  ( -68.91,  27.89)    3.03                22
 10/05/2020   22:56:57   (  67.87,-163.39) 10/05/2020   22:55:51  (  67.91,-165.69)   96.26                66
 10/08/2020   13:32:13   (  69.09, -23.70) 10/08/2020   13:33:06  (  69.07, -23.67)    2.80                53
 10/08/2020   14:22:54   ( -68.99, 143.76) 10/08/2020   14:22:36  ( -68.97, 143.83)    3.66                18
 10/08/2020   15:13:24   (  68.12, -47.79) 10/08/2020   15:12:15  (  68.18, -49.49)   70.61                69
 10/11/2020   05:48:34   (  69.07,  92.23) 10/11/2020   05:49:34  (  69.06,  92.20)    2.39                60
 10/11/2020   06:39:15   ( -68.96,-100.29) 10/11/2020   06:39:04  ( -68.96,-100.30)    0.69                11
 10/11/2020   07:29:49   (  68.32,  67.87) 10/11/2020   07:28:39  (  68.39,  66.65)   50.86                70
 10/13/2020   22:04:57   (  69.11,-151.90) 10/13/2020   22:06:02  (  69.10,-151.87)    2.24                65
 10/13/2020   22:55:38   ( -69.00,  15.58) 10/13/2020   22:55:32  ( -69.00,  15.64)    2.54                 6
 10/13/2020   23:46:16   (  68.58,-176.54) 10/13/2020   23:45:04  (  68.60,-177.22)   27.43                72