Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 12.  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)
 01/14/2020   12:17:53   ( -68.85, 174.54) 01/14/2020   12:18:47  ( -68.83, 174.55)    2.65                54
 01/14/2020   13:08:37   (  68.72, -17.98) 01/14/2020   13:08:14  (  68.74, -17.92)    2.64                23
 01/14/2020   13:59:05   ( -67.94, 150.36) 01/14/2020   13:57:56  ( -67.95, 148.77)   66.53                69
 01/17/2020   04:34:18   ( -68.85, -69.56) 01/17/2020   04:35:22  ( -68.84, -69.58)    1.91                64
 01/17/2020   05:25:02   (  68.73,  97.92) 01/17/2020   05:24:49  (  68.74,  97.94)    1.96                13
 01/17/2020   06:15:36   ( -68.26, -94.15) 01/17/2020   06:14:24  ( -68.35, -94.90)   32.74                72
 01/19/2020   20:50:46   ( -69.02,  46.12) 01/19/2020   20:51:57  ( -68.99,  46.45)   13.51                71
 01/19/2020   21:41:27   (  68.73,-146.19) 01/19/2020   21:41:27  (  68.72,-146.24)    2.54                 0
 01/19/2020   22:32:08   ( -68.64,  21.26) 01/19/2020   22:30:57  ( -68.62,  21.26)    2.24                71
 01/22/2020   13:07:20   ( -69.50, 161.34) 01/22/2020   13:08:29  ( -69.44, 162.87)   60.04                69
 01/22/2020   13:57:53   (  68.79, -30.37) 01/22/2020   13:58:06  (  68.78, -30.33)    1.76                13
 01/22/2020   14:48:33   ( -68.64, 137.16) 01/22/2020   14:47:37  ( -68.63, 137.11)    2.23                56
 01/25/2020   06:14:17   (  68.80,  85.52) 01/25/2020   06:14:47  (  68.82,  85.54)    2.06                30
 01/25/2020   07:04:58   ( -68.70,-107.02) 01/25/2020   07:04:18  ( -68.67,-107.02)    3.22                40