Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 11 10.  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)
 11/11/2019   04:53:07   (  68.80, 105.78) 11/11/2019   04:53:48  (  68.79, 105.76)    1.13                41
 11/11/2019   05:43:49   ( -68.71, -86.77) 11/11/2019   05:43:18  ( -68.69, -86.73)    2.11                31
 11/13/2019   21:09:33   (  68.82,-138.35) 11/13/2019   21:10:16  (  68.83,-138.31)    2.44                43
 11/13/2019   22:00:14   ( -68.67,  29.17) 11/13/2019   21:59:47  ( -68.68,  29.13)    2.02                27
 11/16/2019   13:25:59   (  68.84, -22.49) 11/16/2019   13:26:45  (  68.82, -22.44)    3.11                46
 11/16/2019   14:16:40   ( -68.69, 145.04) 11/16/2019   14:16:16  ( -68.67, 145.00)    2.83                24
 11/16/2019   15:07:05   (  67.60, -46.26) 11/16/2019   15:05:59  (  67.65, -48.56)   97.51                66
 11/19/2019   05:42:23   (  68.81,  93.45) 11/19/2019   05:43:13  (  68.80,  93.42)    2.04                50
 11/19/2019   06:33:05   ( -68.71, -99.10) 11/19/2019   06:32:43  ( -68.71, -99.07)    1.36                22
 11/19/2019   07:23:32   (  67.73,  69.47) 11/19/2019   07:22:24  (  67.80,  67.49)   83.52                68
 11/21/2019   21:58:49   (  68.84,-150.70) 11/21/2019   21:59:41  (  68.83,-150.66)    1.76                52
 11/21/2019   22:49:30   ( -68.68,  16.83) 11/21/2019   22:49:12  ( -68.69,  16.79)    1.65                18
 11/21/2019   23:39:59   (  67.81,-174.74) 11/21/2019   23:38:51  (  67.89,-176.52)   75.15                68