Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 5 1.  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)
 05/02/2019   07:27:56   (  68.85,  67.23) 05/02/2019   07:28:54  (  68.86,  67.16)    2.86                58
 05/02/2019   08:18:37   ( -68.76,-125.32) 05/02/2019   08:18:24  ( -68.75,-125.35)    1.86                13
 05/02/2019   09:09:10   (  68.04,  42.92) 05/02/2019   09:08:01  (  68.08,  41.49)   59.56                69
 05/04/2019   23:44:24   (  68.88,-176.92) 05/04/2019   23:45:23  (  68.86,-176.96)    2.08                59
 05/05/2019   00:35:05   ( -68.78,  -9.47) 05/05/2019   00:34:53  ( -68.75,  -9.46)    2.96                12
 05/05/2019   01:25:39   (  68.11, 158.71) 05/05/2019   01:24:29  (  68.14, 157.44)   52.47                70
 05/07/2019   16:00:52   (  68.90, -61.07) 05/07/2019   16:01:51  (  68.91, -61.01)    2.88                59
 05/07/2019   16:51:32   ( -68.75, 106.46) 05/07/2019   16:51:22  ( -68.75, 106.42)    1.72                10
 05/07/2019   17:42:07   (  68.14, -85.44) 05/07/2019   17:40:57  (  68.19, -86.62)   48.96                70
 05/10/2019   08:17:18   (  68.87,  54.85) 05/10/2019   08:18:19  (  68.90,  54.85)    3.51                61
 05/10/2019   09:07:59   ( -68.77,-137.69) 05/10/2019   09:07:50  ( -68.74,-137.72)    3.13                 9
 05/10/2019   09:58:35   (  68.22,  30.34) 05/10/2019   09:57:24  (  68.24,  29.31)   42.20                71
 05/13/2019   00:33:46   (  68.90, 170.69) 05/13/2019   00:34:48  (  68.88, 170.71)    1.78                62
 05/13/2019   01:24:27   ( -68.79, -21.84) 05/13/2019   01:24:18  ( -68.78, -21.79)    2.70                 9
 05/13/2019   02:15:03   (  68.25, 146.18) 05/13/2019   02:13:52  (  68.28, 145.24)   39.00                71