Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 5 25.  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)
 05/26/2019   09:56:01   (  68.89,  30.11) 05/26/2019   09:57:10  (  68.90,  30.13)    1.43                69
 05/26/2019   10:46:42   ( -68.79,-162.43) 05/26/2019   10:46:40  ( -68.79,-162.38)    2.34                 2
 05/26/2019   11:37:22   (  68.45,   5.32) 05/26/2019   11:36:10  (  68.52,   4.93)   17.44                72
 05/29/2019   02:12:28   (  68.88, 146.01) 05/29/2019   02:13:39  (  68.87, 145.98)    1.74                71
 05/29/2019   03:03:09   ( -68.77, -46.52) 05/29/2019   03:03:09  ( -68.76, -46.53)    1.24                 0
 05/29/2019   03:53:50   (  68.49, 121.15) 05/29/2019   03:52:38  (  68.54, 120.84)   13.77                72
 05/31/2019   18:28:56   (  68.92, -98.16) 05/31/2019   18:30:07  (  68.89, -98.12)    3.35                71
 05/31/2019   19:19:37   ( -68.81,  69.31) 05/31/2019   19:19:37  ( -68.79,  69.38)    3.64                 0
 05/31/2019   20:10:18   (  68.54,-123.02) 05/31/2019   20:09:06  (  68.56,-123.25)   10.00                72
 06/03/2019   10:45:24   (  68.96,  17.67) 06/03/2019   10:46:35  (  68.91,  17.79)    7.41                71
 06/03/2019   11:36:03   ( -68.74,-174.71) 06/03/2019   11:36:06  ( -68.76,-174.78)    3.30                 3
 06/03/2019   12:26:46   (  68.58,  -7.19) 06/03/2019   12:25:34  (  68.58,  -7.35)    6.37                72
 06/06/2019   03:01:50   (  68.95, 133.56) 06/06/2019   03:03:02  (  68.93, 133.69)    5.83                72
 06/06/2019   03:52:30   ( -68.78, -58.88) 06/06/2019   03:52:33  ( -68.77, -58.87)    0.31                 3
 06/06/2019   04:43:13   (  68.62, 108.63) 06/06/2019   04:42:00  (  68.65, 108.62)    3.35                73