Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 15.  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)
 08/17/2019   11:16:31   ( -68.83,-170.03) 08/17/2019   11:17:12  ( -68.85,-169.98)    3.27                41
 08/17/2019   12:07:15   (  68.72,  -2.57) 08/17/2019   12:06:40  (  68.69,  -2.54)    3.18                35
 08/20/2019   03:32:58   ( -68.84, -54.17) 08/20/2019   03:33:41  ( -68.82, -54.14)    2.63                43
 08/20/2019   04:23:41   (  68.68, 113.36) 08/20/2019   04:23:09  (  68.66, 113.30)    3.20                32
 08/22/2019   19:49:23   ( -68.81,  61.77) 08/22/2019   19:50:09  ( -68.79,  61.70)    3.12                46
 08/22/2019   20:40:07   (  68.70,-130.77) 08/22/2019   20:39:36  (  68.68,-130.79)    1.55                31
 08/25/2019   12:05:50   ( -68.83, 177.63) 08/25/2019   12:06:37  ( -68.82, 177.62)    1.25                47
 08/25/2019   12:56:34   (  68.71, -14.91) 08/25/2019   12:56:04  (  68.71, -14.88)    1.68                30
 08/25/2019   13:46:57   ( -67.64, 153.78) 08/25/2019   13:45:50  ( -67.71, 151.57)   93.70                67
 08/28/2019   04:22:17   ( -68.85, -66.51) 08/28/2019   04:23:05  ( -68.84, -66.47)    1.60                48
 08/28/2019   05:13:00   (  68.68, 101.02) 08/28/2019   05:12:33  (  68.67, 100.96)    2.63                27
 08/28/2019   06:03:25   ( -67.71, -90.43) 08/28/2019   06:02:17  ( -67.79, -92.46)   86.14                68