Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 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)
 08/12/2019   03:34:22   (  68.70, 125.67) 08/12/2019   03:33:44  (  68.68, 125.68)    2.61                38
 08/14/2019   19:00:04   ( -68.82,  74.08) 08/14/2019   19:00:44  ( -68.81,  74.08)    1.76                40
 08/14/2019   19:50:48   (  68.72,-118.47) 08/14/2019   19:50:11  (  68.70,-118.41)    3.15                37
 08/17/2019   11:16:31   ( -68.85,-170.06) 08/17/2019   11:17:12  ( -68.83,-170.01)    2.60                41
 08/17/2019   12:07:14   (  68.69,  -2.54) 08/17/2019   12:06:40  (  68.67,  -2.57)    2.86                34
 08/20/2019   03:32:57   ( -68.82, -54.13) 08/20/2019   03:33:40  ( -68.85, -54.11)    3.34                43
 08/20/2019   04:23:41   (  68.71, 113.32) 08/20/2019   04:23:08  (  68.68, 113.33)    3.50                33
 08/22/2019   19:49:24   ( -68.84,  61.72) 08/22/2019   19:50:08  ( -68.86,  61.79)    3.09                44
 08/22/2019   20:40:07   (  68.68,-130.76) 08/22/2019   20:39:36  (  68.69,-130.78)    1.17                31
 08/22/2019   21:30:30   ( -67.60,  37.93) 08/22/2019   21:29:23  ( -67.64,  35.60)   98.72                67
 08/25/2019   12:05:49   ( -68.82, 177.64) 08/25/2019   12:06:36  ( -68.81, 177.61)    1.75                47
 08/25/2019   12:56:33   (  68.71, -14.91) 08/25/2019   12:56:03  (  68.70, -14.89)    1.95                30