Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 23.  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)
 02/23/2020   17:14:59   (  69.42, -80.44) 02/23/2020   17:16:09  (  69.32, -79.22)   49.07                70
 02/23/2020   18:05:31   ( -68.82,  87.73) 02/23/2020   18:05:46  ( -68.82,  87.77)    1.90                15
 02/23/2020   18:56:14   (  68.67,-104.76) 02/23/2020   18:55:14  (  68.66,-104.79)    1.97                60
 02/26/2020   09:31:25   (  69.56,  35.28) 02/26/2020   09:32:34  (  69.44,  36.82)   61.59                69
 02/26/2020   10:21:55   ( -68.83,-156.39) 02/26/2020   10:22:13  ( -68.83,-156.33)    2.60                18
 02/26/2020   11:12:37   (  68.64,  11.18) 02/26/2020   11:11:41  (  68.66,  11.10)    3.66                56
 02/29/2020   01:47:51   (  69.64, 151.06) 02/29/2020   01:48:59  (  69.51, 152.81)   69.14                68
 02/29/2020   02:38:19   ( -68.80, -40.45) 02/29/2020   02:38:40  ( -68.80, -40.49)    1.73                21
 02/29/2020   03:29:02   (  68.67, 127.04) 02/29/2020   03:28:07  (  68.67, 127.01)    1.42                55
 03/02/2020   18:04:15   (  69.61, -93.00) 03/02/2020   18:05:23  (  69.53, -91.27)   67.76                68
 03/02/2020   18:54:44   ( -68.83,  75.43) 03/02/2020   18:55:04  ( -68.82,  75.44)    1.07                20
 03/02/2020   19:45:27   (  68.70,-117.09) 03/02/2020   19:44:31  (  68.69,-117.07)    1.32                56
 03/05/2020   10:20:38   (  69.54,  23.02) 03/05/2020   10:21:47  (  69.44,  24.52)   59.61                69
 03/05/2020   11:11:08   ( -68.80,-168.63) 03/05/2020   11:11:27  ( -68.79,-168.69)    2.67                19
 03/05/2020   12:01:51   (  68.68,  -1.16) 03/05/2020   12:00:54  (  68.66,  -1.21)    3.08                57
 03/08/2020   02:36:59   (  69.41, 139.10) 03/08/2020   02:38:09  (  69.30, 140.25)   46.64                70