Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 10.  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)
 02/10/2020   07:52:46   (  68.87,  60.83) 02/10/2020   07:53:39  (  68.84,  60.82)    3.38                53
 02/10/2020   08:43:26   ( -68.71,-131.63) 02/10/2020   08:43:09  ( -68.73,-131.68)    3.04                17
 02/10/2020   09:33:57   (  67.90,  36.73) 02/10/2020   09:32:48  (  67.95,  35.03)   71.29                69
 02/13/2020   00:09:11   (  68.88, 176.71) 02/13/2020   00:10:11  (  68.87, 176.72)    1.48                60
 02/13/2020   00:59:52   ( -68.77, -15.81) 02/13/2020   00:59:41  ( -68.77, -15.77)    1.67                11
 02/13/2020   01:50:26   (  68.13, 152.34) 02/13/2020   01:49:16  (  68.21, 151.19)   48.30                70
 02/15/2020   16:25:36   (  68.90, -67.41) 02/15/2020   16:26:43  (  68.90, -67.37)    1.34                67
 02/15/2020   17:16:17   ( -68.78, 100.08) 02/15/2020   17:16:13  ( -68.80, 100.13)    3.51                 4
 02/15/2020   18:06:56   (  68.41, -92.13) 02/15/2020   18:05:44  (  68.47, -92.64)   21.71                72
 02/18/2020   08:42:03   (  69.02,  48.33) 02/18/2020   08:43:14  (  68.99,  48.60)   11.59                71
 02/18/2020   09:32:42   ( -68.79,-144.04) 02/18/2020   09:32:46  ( -68.78,-144.03)    0.80                 4
 02/18/2020   10:23:24   (  68.64,  23.47) 02/18/2020   10:22:12  (  68.66,  23.47)    2.32                72
 02/21/2020   00:58:32   (  69.31, 163.83) 02/21/2020   00:59:42  (  69.19, 164.72)   37.54                70
 02/21/2020   01:49:06   ( -68.80, -28.15) 02/21/2020   01:49:17  ( -68.82, -28.12)    2.16                11
 02/21/2020   02:39:49   (  68.66, 139.35) 02/21/2020   02:38:45  (  68.64, 139.30)    3.08                64
 02/23/2020   17:15:01   (  69.54, -80.60) 02/23/2020   17:16:10  (  69.44, -79.09)   60.03                69
 02/23/2020   18:05:31   ( -68.81,  87.74) 02/23/2020   18:05:50  ( -68.79,  87.71)    2.13                19
 02/23/2020   18:56:14   (  68.68,-104.78) 02/23/2020   18:55:17  (  68.67,-104.80)    1.50                57