Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 29.  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)
 01/30/2020   13:56:41   ( -69.89, 148.46) 01/30/2020   13:57:47  ( -69.79, 150.98)   97.25                66
 01/30/2020   14:47:07   (  68.81, -42.70) 01/30/2020   14:47:30  (  68.81, -42.67)    1.20                23
 01/30/2020   15:37:47   ( -68.66, 124.82) 01/30/2020   15:37:00  ( -68.70, 124.83)    3.69                47
 02/02/2020   07:03:32   (  68.82,  73.19) 02/02/2020   07:04:02  (  68.84,  73.24)    3.01                30
 02/02/2020   07:54:12   ( -68.67,-119.28) 02/02/2020   07:53:33  ( -68.68,-119.33)    2.72                39
 02/04/2020   23:19:57   (  68.83,-170.92) 02/04/2020   23:20:35  (  68.81,-170.94)    2.11                38
 02/05/2020   00:10:38   ( -68.72,  -3.45) 02/05/2020   00:10:05  ( -68.71,  -3.43)    1.65                33
 02/07/2020   15:36:21   (  68.84, -55.03) 02/07/2020   15:37:06  (  68.83, -55.05)    1.52                45
 02/07/2020   16:27:02   ( -68.72, 112.45) 02/07/2020   16:26:36  ( -68.73, 112.46)    0.60                26
 02/10/2020   07:52:46   (  68.85,  60.86) 02/10/2020   07:53:38  (  68.83,  60.82)    2.02                52
 02/10/2020   08:43:27   ( -68.73,-131.66) 02/10/2020   08:43:08  ( -68.74,-131.66)    1.40                19
 02/10/2020   09:33:56   (  67.82,  36.82) 02/10/2020   09:32:48  (  67.89,  34.97)   78.13                68