Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 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)
 07/14/2020   18:16:07   ( -69.70,  84.21) 07/14/2020   18:17:16  ( -69.60,  85.97)   69.02                69
 07/14/2020   19:06:37   (  68.89,-107.32) 07/14/2020   19:06:54  (  68.88,-107.32)    0.71                17
 07/14/2020   19:57:18   ( -68.75,  60.20) 07/14/2020   19:56:24  ( -68.77,  60.18)    3.22                54
 07/17/2020   10:32:35   ( -69.96,-160.25) 07/17/2020   10:33:41  ( -69.85,-157.80)   94.53                66
 07/17/2020   11:23:01   (  68.94,   8.53) 07/17/2020   11:23:23  (  68.91,   8.60)    3.61                22
 07/17/2020   12:13:42   ( -68.79, 176.05) 07/17/2020   12:12:53  ( -68.81, 176.10)    3.15                49
 07/20/2020   03:39:23   (  68.88, 124.52) 07/20/2020   03:39:53  (  68.89, 124.45)    3.30                30
 07/20/2020   04:30:05   ( -68.78, -68.03) 07/20/2020   04:29:23  ( -68.79, -68.04)    1.21                42
 07/22/2020   19:55:46   (  68.93,-119.63) 07/22/2020   19:56:21  (  68.93,-119.63)    0.53                35
 07/22/2020   20:46:28   ( -68.83,  47.82) 07/22/2020   20:45:51  ( -68.83,  47.88)    2.42                37
 07/25/2020   12:12:09   (  68.93,  -3.72) 07/25/2020   12:12:50  (  68.96,  -3.71)    3.28                41
 07/25/2020   13:02:51   ( -68.83, 163.73) 07/25/2020   13:02:21  ( -68.81, 163.73)    2.29                30