Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 13.  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)
 08/13/2020   06:06:56   (  69.29,  87.17) 08/13/2020   06:08:07  (  69.18,  87.73)   25.33                71
 08/13/2020   06:57:32   ( -68.89,-104.96) 08/13/2020   06:57:40  ( -68.89,-104.99)    1.42                 8
 08/13/2020   07:48:16   (  68.80,  62.47) 08/13/2020   07:47:07  (  68.79,  62.52)    2.43                69
 08/15/2020   22:23:21   (  69.45,-157.14) 08/15/2020   22:24:32  (  69.34,-156.18)   39.83                71
 08/15/2020   23:13:54   ( -68.90,  10.95) 08/15/2020   23:14:08  ( -68.89,  10.88)    2.85                14
 08/16/2020   00:04:38   (  68.80, 178.39) 08/16/2020   00:03:35  (  68.78, 178.39)    2.34                63
 08/18/2020   14:39:48   (  69.66, -41.54) 08/18/2020   14:40:57  (  69.55, -40.01)   60.71                69
 08/18/2020   15:30:18   ( -68.95, 126.79) 08/18/2020   15:30:36  ( -68.94, 126.83)    1.89                18
 08/18/2020   16:21:01   (  68.81, -65.70) 08/18/2020   16:20:04  (  68.78, -65.73)    3.33                57
 08/21/2020   06:56:15   (  69.88,  74.05) 08/21/2020   06:57:22  (  69.77,  76.17)   82.10                67
 08/21/2020   07:46:41   ( -68.96,-117.30) 08/21/2020   07:47:05  ( -68.94,-117.29)    1.54                24
 08/21/2020   08:37:24   (  68.81,  50.20) 08/21/2020   08:36:32  (  68.83,  50.21)    2.25                52
 08/24/2020   00:03:04   ( -68.96,  -1.40) 08/24/2020   00:03:34  ( -68.94,  -1.41)    2.15                30
 08/24/2020   00:53:47   (  68.81, 166.11) 08/24/2020   00:53:01  (  68.83, 166.09)    1.65                46
 08/26/2020   16:19:26   ( -68.97, 114.51) 08/26/2020   16:20:02  ( -68.94, 114.47)    3.16                36
 08/26/2020   17:10:09   (  68.82, -77.98) 08/26/2020   17:09:29  (  68.83, -78.03)    2.11                40