Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 5 2.  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,  67.17)    2.74                58
 05/02/2019   08:18:37   ( -68.76,-125.32) 05/02/2019   08:18:24  ( -68.74,-125.35)    1.87                13
 05/02/2019   09:09:10   (  68.04,  42.92) 05/02/2019   09:08:01  (  68.09,  41.50)   59.33                69
 05/04/2019   23:44:24   (  68.88,-176.92) 05/04/2019   23:45:23  (  68.87,-176.94)    0.98                59
 05/05/2019   00:35:05   ( -68.78,  -9.47) 05/05/2019   00:34:53  ( -68.76,  -9.45)    2.55                12
 05/05/2019   01:25:39   (  68.12, 158.70) 05/05/2019   01:24:29  (  68.15, 157.46)   51.86                70
 05/07/2019   16:00:52   (  68.90, -61.08) 05/07/2019   16:01:52  (  68.88, -61.06)    2.87                60
 05/07/2019   16:51:32   ( -68.75, 106.45) 05/07/2019   16:51:22  ( -68.77, 106.44)    1.99                10
 05/07/2019   17:42:07   (  68.14, -85.45) 05/07/2019   17:40:57  (  68.21, -86.59)   47.93                70
 05/10/2019   08:17:18   (  68.88,  54.84) 05/10/2019   08:18:20  (  68.88,  54.83)    0.57                62
 05/10/2019   09:07:59   ( -68.78,-137.70) 05/10/2019   09:07:50  ( -68.78,-137.67)    1.16                 9
 05/10/2019   09:58:35   (  68.23,  30.33) 05/10/2019   09:57:24  (  68.27,  29.36)   40.32                71
 05/13/2019   00:33:45   (  68.86, 170.75) 05/13/2019   00:34:49  (  68.88, 170.71)    3.32                64
 05/13/2019   01:24:26   ( -68.75, -21.79) 05/13/2019   01:24:19  ( -68.78, -21.79)    2.90                 7
 05/13/2019   02:15:03   (  68.26, 146.17) 05/13/2019   02:13:52  (  68.33, 145.30)   36.50                71
 05/15/2019   16:50:13   (  68.89, -73.41) 05/15/2019   16:51:18  (  68.88, -73.42)    1.35                65
 05/15/2019   17:40:54   ( -68.78,  94.05) 05/15/2019   17:40:48  ( -68.78,  94.09)    1.41                 6
 05/15/2019   18:31:32   (  68.35, -98.06) 05/15/2019   18:30:20  (  68.38, -98.76)   28.70                72