Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 8.  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   13:50:30   (  69.10, -28.48) 08/10/2020   13:51:40  (  69.09, -28.25)    8.95                70
 08/10/2020   14:41:10   ( -68.91, 139.10) 08/10/2020   14:41:11  ( -68.92, 139.17)    2.88                 1
 08/10/2020   15:31:52   (  68.72, -53.33) 08/10/2020   15:30:39  (  68.76, -53.39)    5.15                73
 08/13/2020   06:06:55   (  69.25,  87.22) 08/13/2020   06:08:06  (  69.19,  87.76)   22.39                71
 08/13/2020   06:57:32   ( -68.91,-104.98) 08/13/2020   06:57:39  ( -68.91,-104.97)    0.81                 7
 08/13/2020   07:48:15   (  68.77,  62.52) 08/13/2020   07:47:07  (  68.75,  62.47)    3.07                68
 08/15/2020   22:23:22   (  69.46,-157.17) 08/15/2020   22:24:32  (  69.34,-156.17)   41.43                70
 08/15/2020   23:13:55   ( -68.90,  10.94) 08/15/2020   23:14:08  ( -68.90,  10.89)    1.93                13
 08/16/2020   00:04:38   (  68.77, 178.43) 08/16/2020   00:03:35  (  68.78, 178.40)    2.48                63
 08/18/2020   14:39:48   (  69.62, -41.48) 08/18/2020   14:40:57  (  69.53, -40.03)   57.11                69
 08/18/2020   15:30:19   ( -68.95, 126.78) 08/18/2020   15:30:36  ( -68.93, 126.82)    2.86                17
 08/18/2020   16:21:02   (  68.81, -65.72) 08/18/2020   16:20:03  (  68.81, -65.68)    1.46                59
 08/21/2020   06:56:15   (  69.82,  74.13) 08/21/2020   06:57:22  (  69.72,  76.11)   77.20                67
 08/21/2020   07:46:42   ( -68.95,-117.30) 08/21/2020   07:47:04  ( -68.96,-117.27)    1.64                22
 08/21/2020   08:37:25   (  68.81,  50.20) 08/21/2020   08:36:32  (  68.78,  50.16)    3.39                53