Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 6 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)
 06/09/2020   21:52:25   (  69.75,-150.02) 06/09/2020   21:53:33  (  69.65,-148.04)   77.15                68
 06/09/2020   22:42:51   ( -68.85,  18.58) 06/09/2020   22:43:15  ( -68.87,  18.57)    2.89                24
 06/09/2020   23:33:35   (  68.73,-173.96) 06/09/2020   23:32:43  (  68.71,-173.98)    2.30                52
 06/12/2020   14:59:15   ( -68.87, 134.46) 06/12/2020   14:59:47  ( -68.85, 134.41)    3.00                32
 06/12/2020   15:49:59   (  68.76, -58.09) 06/12/2020   15:49:14  (  68.74, -58.08)    2.41                45
 06/15/2020   07:15:38   ( -68.90,-109.67) 06/15/2020   07:16:18  ( -68.88,-109.68)    1.54                40
 06/15/2020   08:06:22   (  68.79,  57.78) 06/15/2020   08:05:45  (  68.77,  57.83)    3.15                37
 06/17/2020   23:32:02   ( -68.92,   6.21) 06/17/2020   23:32:51  ( -68.92,   6.23)    1.03                49
 06/18/2020   00:22:45   (  68.77, 173.72) 06/18/2020   00:22:18  (  68.80, 173.73)    3.54                27
 06/18/2020   01:13:11   ( -67.85, -17.77) 06/18/2020   01:12:03  ( -67.88, -19.76)   83.50                68
 06/20/2020   15:48:26   ( -68.95, 122.08) 06/20/2020   15:49:25  ( -68.96, 122.14)    2.53                59
 06/20/2020   16:39:09   (  68.81, -70.42) 06/20/2020   16:38:53  (  68.79, -70.44)    2.52                16
 06/20/2020   17:29:41   ( -68.20,  97.70) 06/20/2020   17:28:31  ( -68.25,  96.54)   48.32                70