Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 14.  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)
 07/16/2019   07:08:43   (  69.54,  71.01) 07/16/2019   07:09:52  (  69.44,  72.59)   62.70                69
 07/16/2019   07:59:13   ( -68.81,-120.64) 07/16/2019   07:59:32  ( -68.78,-120.63)    3.30                19
 07/16/2019   08:49:56   (  68.68,  46.84) 07/16/2019   08:48:59  (  68.67,  46.88)    2.11                57
 07/18/2019   23:25:11   (  69.66,-173.27) 07/18/2019   23:26:19  (  69.57,-171.36)   74.41                68
 07/19/2019   00:15:39   ( -68.81,  -4.76) 07/19/2019   00:16:01  ( -68.80,  -4.73)    2.10                22
 07/19/2019   01:06:22   (  68.69, 162.71) 07/19/2019   01:05:28  (  68.69, 162.77)    2.43                54
 07/21/2019   15:41:41   (  69.82, -57.63) 07/21/2019   15:42:47  (  69.74, -55.26)   91.52                66
 07/21/2019   16:32:06   ( -68.82, 111.11) 07/21/2019   16:32:32  ( -68.81, 111.15)    1.93                26
 07/21/2019   17:22:49   (  68.69, -81.41) 07/21/2019   17:21:59  (  68.69, -81.35)    2.61                50
 07/24/2019   08:48:33   ( -68.83,-133.01) 07/24/2019   08:49:04  ( -68.81,-132.98)    2.25                31
 07/24/2019   09:39:16   (  68.70,  34.46) 07/24/2019   09:38:31  (  68.69,  34.52)    2.49                45
 07/27/2019   01:04:59   ( -68.78, -17.07) 07/27/2019   01:05:37  ( -68.80, -17.13)    3.32                38
 07/27/2019   01:55:43   (  68.71, 150.34) 07/27/2019   01:55:04  (  68.69, 150.37)    3.25                39